Question

The crafty child tricked his innocent brother, a particularly _____ and trusting boy, into committing a mischievous prank.
A. Guileless
B. Intrusive
C. Astute
D. Opportunistic
E. Circumspect

Answer 1

Hint: Synonyms are words that are similar in meaning. Synonyms are used when you do not want to repeat the same word again and again.

Complete answer:
We have to find the meaning of innocent and the meaning of words that are given in the options. And both the words should have the same meaning or the exact sense.
The meaning of innocent is not guilty or blameless. And we have to find the correct answer from the options given whose meaning is the same as innocent.
Option A) Guileless - is the correct answer because the meaning of guileless is ‘honest, sincere, genuine, innocent’ and this is a synonym of innocent. Thus, they can replace each other because their meanings are the same or similar and this is the correct answer because according to the question the boy was trusting an innocent boy who was tricked by the crafty child.
Option B) Intrusive - is an incorrect answer because the meaning of intrusive is ‘causing disruption through being unwelcome or uninvited’ and this is not a synonym of innocent. Thus, this is an incorrect answer because the meaning of the words ‘intrusive’ and ‘innocent’ does not match.
Option C) Astute - is an incorrect answer because the meaning of astute is ‘having or showing an ability to accurately assess situations’ and this is not a synonym of innocent. Thus, this is an incorrect answer because the meaning of the words ‘astute’ and ‘innocent’ does not match.
Option D) Opportunistic - is an incorrect answer because the meaning of opportunistic is ‘one who is exploiting immediate opportunities’ and this is not a synonym of innocent. Thus, this is an incorrect answer because the meaning of the words ‘opportunistic’ and ‘innocent’ does not match.
Option E) Circumspect - is an incorrect answer because the meaning of circumspect is ‘wary and unwilling to take risk’ and this is not a synonym of innocent. Thus, this is an incorrect answer because the meaning of the words ‘circumspect’ and ‘innocent’ does not match.
The crafty child tricked his innocent brother, a particularly guileless and trusting boy, into committing a mischievous prank.

So, the correct answer is “Option A”.

Note:
It is very important to know the meaning of synonyms and also to know the meaning of the words that are given in the options. And for this your vocabulary should be very good. So work on vocabulary every day. Read every day, learn new words every day, look up words you don’t know. There are uses of the words (given in the options) in the sentences and they are:
1: The guileless peasant set down his buckets and considered his alternatives.
2: She dismissed the intrusive thought.
3: He was astute in business matters.
4: She is opportunistic in nature.
5: It was done in a circumspect manner.
The above sentence requires a synonym and guileless is the perfect answer because guileless is the synonym of innocent (because their meanings are the same).