Question

Click on the item that contains a dependent-word fragment.

Answer 1

Answer:

a. Our car is making a chugging noise. It sounds ominous.

Answer 2

Answer:

b. Our car is making a chugging noise. Which sounds ominous.

Explanation:

The sentence fragment is which sounds ominous, because it has no subject and is hardly a complete thought. All of the other ones are correct sentences, but which sounds ominous is a dependent clause, so it's a sentence fragment.