Hint: Fungi depend on other organisms for food like animals while algae makes their own food like plants and As we know plants store their food in the form of starch and animals store their food in the form of glycogen.
In this question we have asked about the reserve food of algae and fungi. As we already mentioned fungi depends on other organisms for food like animals while algae make their own food like plants. Glycogen, also known as animal starch is the chief storage polysaccharide of animal cells and most of the fungi (though food is also stored as oil globules in some fungi), Starch is a complex water insoluble polysaccharide carbohydrate chiefly found in green plants and algae as their principal energy.
So, the first option is starch and floridoside. As we already mentioned that starch is stored food of autotrophs like plants and algae and floridoside is a primary photosynthetic product. Neither fungi nor algae store their food as floridoside. So, this option is not completely true. Our next option is oil droplets and fat. As we already mentioned that some fungi also stored their food is oil droplets and fat but mainly as glycogen and algae do not store their food in the form of Oil Drop or fat. The method option is starch and glycogen as we already mentioned that algae store their food as starch and fungi stores their food as glycogen so this option is absolutely correct. The next option is starch in Clash Royale; neither fungi and algae store their food as glycerol. So, this option is also not true. Therefore, the correct option is C. starch and glycogen.
The correct option is C, Starch and glycogen
Note: As we already mentioned that some fungi also store their food in the form of oil droplets so oil droplets are also correct but it does not completely solve the question as we also asked about the algae.