The FALSE option is B.
A list of items is NOT introduced by a comma but by a colon.
For example, "tomorrow I will buy some things at the supermarket: milk, meat, shampoo, etc."
The comma is correctly used to join two independent clauses (together with coordinating conjunction), to separate items in a series of a list (as stated in the example), and a comma is placed after transitional expressions such as "however".
