Answer:
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