The mood of the writer is that of?

Use the extract below to answer questions

Line 1: My heart leaps up when I behold
Line 2: A rainbow in the sky
Line 3: so was it when my life began
Line 4: so is it now
Line 5: so is it when I have grown
Line 6: the child is the father of the man.

A. Elation
B. Sarcasm
C. Sorrow
D. Anxiety

Correct Answer: Option D

D. Anxiety

Explanation

Although, the poet seems to have a glimpse of hope at the very beginning, this was, however, overtaken by the feeling of worry as to the challenges of maturity and growing older