Which is a fused sentence?
a. our pet poodle loves to sit on our laps and take long naps.
b. i love drawing because it exercises my imagination.
c. choosing a video game is hard there are so many for sale.
d. pablo took a music class that focused on playing the piano.

The answer is letter C. Choosing a video game is hard there are so many for sale.

Explanation:

A fused sentence happens when we put together two independent clauses with no punctuation or conjunction to connect them. An independent clause has a subject and a predicate, and it expresses a complete thought on its own.

We have precisely that in letter C. Two independent clauses were put together without proper punctuation or a conjunction to connect them:

1. Choosing a video game is hard.

2. There are so many (video games) for sale.

We could correct the sentence in letter C by using a semicolon to separate the clauses or by using the coordinating conjunction "for" to establish a relationship of explanation between them.

- Choosing a video game is hard; there are so many for sale.

- Choosing a video game is hard, for there are so many for sale. --> note that we must add a comma before the conjunction