One of Your Colleagues Was Present at His Son's Birth

One of your colleagues was present at his son's birth.He was upset because his son was born with an oily, cheesy substance all over his skin and no one told him what the problem was.You should tell him __________.

A) that it was probably cancer
B) that his baby probably had something wrong with it.You have never heard of such a thing
C) that the oily, cheesy substance was vernix and many babies have that at birth; it protects their skin in utero
D) that that was a greasy substance that is used to help the baby emerge from the birth canal; it will be washed off later