Which of these lines from "the gorgon's head" by nathaniel hawthorne is an imperative sentence?

"would it not be better to set out at once in search of the terrible gorgons? "

"be careful that they do not see you before you see them."

"a pebble, dropped from your hand, would strike in the midst of them."

"we could do nothing without the of my sister."

a

explanation:

most likely the answer would be a.) cupidity

definitions:

cupidity - greed for money or possessions

hydrophobia - extreme or irrational fear of water, especially as a symptom of rabies in humans

pathology - the science of the causes and effects of diseases, especially the branch of medicine that deals with the laboratory examination of samples of body tissue for diagnostic or forensic

patho -   relating to disease