Which sentence is correctly punctuated?

a. the books you will need include: belle prater's boy and the diary of anne frank.
b. jessie's favorite sports are: softball, volleyball, and field hockey.
c. the college is offering: french, japanese, and russian language courses.
d. you ought to interview these people: mr. ryan, mrs. komanowski, and ms. thayer.

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

i've read it so how can i ?