Question

A fruit is
A) a ripened ovary
B) an enlarged ovule
C) an enlarged aggregate of several flowers
D) a mature female gametophyte

Answer 1

Hint: In flowering plants, a fruit is known as the seed-bearing structure. The process of fertilization should take place in flowering plants which ultimately leads to the formation of fruit. It is through fruits by which angiosperms spreads seeds. The process of fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule, which sits beneath the flower. After fertilization further development happens to both ovary and ovule.

Complete answer:
The seed-bearing structure in flowering plants is known as the fruit, which is also known as angiosperms. Fruits are formed from the ovary after flowering. The ovary ripens to form fruit.
So, option A ‘a ripened ovary' is correct.
After the process of fertilization, the ovules develop into seeds. Each of the seeds holds a tiny, undeveloped plant called an embryo. The ovary which surrounds the ovules further develops into a fruit which contains one or more seeds.
So, option B is not correct.
An aggregate of flowers is known as an inflorescence. Flowers develop into fruits and seeds after fertilization but an enlarged aggregate of several flowers is not a fruit.
So, option C is not correct.
Within the ovule develops the female gametophyte and it generally consists of three antipodal cells, two synergid cells, one central cell, and one egg cell. It is also commonly known as the embryo sac. So, option D is not correct.

So, Option A. a ripened ovary, is the correct answer

Note:
The seeds are enclosed by fruit. The fruit is a mature or ripened ovary. The ovule-bearing reproductive structure of the plant flower is termed as the ovary. The ovules are protected and enclosed by the ovary, from the very young stage of flower development until the ovules become fertilized and then turns into a seed.