Ihave apple.
a. an
b. a
c. the

Technically the answer to this can be two of the three options, A. and C. (although A. is likely to one your teachers is looking for. I will explain why below)

I have an apple

vs.

I have the apple

It may not seem like it, but these sentences tell us to different things.

When you say a/an this means that there are likely several apples in the vicinity and/or there is nothing particular or unique about the apple you have. In this case the reason you would say "an apple" and not "a apple" is because "apple" starts with a vowel. When a word starts with a vowel you must use "an" instead of "a."

When you say "the apple" it is likely that the apple is unique or has some particular quality. It's like saying that it is a one of a kind apple.

Hope this helped!

~Just a girl in love with Shawn Mendes

covert: hidden or secret

candid: truthful and straightforward

what i get from these phrases is covert means undercover or underground and that's where the flower is in april. on the other hand, may is the month where flowers start to bloom and thats the reason why candid is being used as a word to describe the blossoming period of a flower.

hope this answer you.

tree and the cat in the tree