The rhyme scheme of the poem is?

Read the extract and answer the question

My heart leaps up when I behold
A rainbow in the sky:
So was it when my life began,
So is it now that I am a man,
So be it when I shall grow
The child is father of the man

A. ab cc ac
B. ac bc ca
C. ab ca cc
D. ab ac bc

Correct Answer:

Option A – ab cc ac