I find life hard enough . But here I am , doing a spring " cleanse . " I am cranky because I am exhausted . I am exhausted - or feeling my exhaustion - because all I ' ve been drinking is green tea , and not my usual 2 large cups of coffee in the morning plus limitless cups of black tea throughout the afternoon , and then decaf black tea in the evening .
Why is the narrator so tired ?
Pick the best answer from the following options:
A. They are without sleep since Spring started .
B. They are without sleep .
C. They are without caffeine .
D. None of the above choices .


C