Question

When is it not appropriate to use a comma?

A.Before you use a coordinating conjunction
B.When you want to separate items in a list
C.When you want to introduce a list
D.When you want to set off introductory material

Answer 1

I believe the answer is c

Answer 2

C.When you want to introduce a list
You don't go, "I need to get, milk, butter, and sugar."
You go," I need to get milk, butter, and sugar.