Question

PLEASE HELP! Comma: Some of the types of seafood suited to farming include mussels, oysters, clams, shrimp, carp, and catfish.

A. Separates coordinate adjectives (adjectives that independently modify the same noun)
B. Separates items in a series
C. Sets off a nonrestrictive modifier
D. Sets off an introductory clause, phrase, or word
E. Joins two main clauses

Some farmers catch young fish, confine them to a pond or cage, and feed them until they are old enough to harvest.
A. Separates coordinate adjectives
B. Sets off an introductory clause, phrase, or word
C. Separates items in a series
D. Joins two main clauses
E. Sets off a nonrestrictive modifier

Answer 1

1. B --> mussels, oysters, clams, shrimp, carp and catfish is a list (series) of foods that has to be separated by a comma

2. B--> if you remove 'confine them to a pond or cage' its a normal sentence, so i think its b

Answer 2

1. B. Separates items in a series

One of the functions of commas is to separate series of items (things, actions, person, animals, elements, etc.) and this is exactly what it is doing when separating the items mussels, oysters, clams, shrimp, carp, and catfish in the sentence.

2. C. Separates items in a series

The sentence is describing a series of steps or actions which can also be referred to as items. The function of the comma here is to separate each of those items.