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.

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.

16.) true

17.) true

18.) it doesn't say

19.) true

20.) false

explanation: