Which is a fused sentence?

AFelicia likes to watch old movies and listen to old rock music.

BJuanito likes to play drums that he makes out of old cans.

CMy dad doesn’t have a hobby he is too busy working.

DI enjoy playing video games because they are so exciting.

Verified Answer :

The right answer is C. My dad doesn’t have a hobby he is too busy working. The fused sentence is when there are 2 closes in a sentence, but there is no punctuation, which is an error. 

The correct answer is C. My dad doesn’t have a hobby he is too busy working.

Explanation:

A sentence is considered as fused if the sentence contains two independent clauses together without proper punctuation such as a semicolon or a transition. This type of grammar error can be seen in "My dad doesn’t have a hobby he is too busy working" because in this sentence there are two independent sentences each with a subject, verb and even object/complement "My dad doesn’t have a hobby", and " he is too busy working" but there is no punctuation or transition between them.