Which one is the fragment?
A.
Because my car broke down.
B.
I did not notice.
C.
I was worried.
D.
I will be late.

I am doing a hw but I cannot identify the fragment here. Could you please help me?
Thank you so much!

Question

Which one is the fragment?
A.	
Because my car broke down.
	B.	
I did not notice.
	C.	
I was worried.
	D.	
I will be late.

I am doing a hw but I cannot identify the fragment here. Could you please help me? 
Thank you so much!

Answer

A is a fragment. It is possibly the answer to a question. If stated on its own, you need a second part: I am late, because my car broke down.

Answer

Why don't you tell us and we'll tell you yes or no and why. 
Seems like a better way to learn, it replicates the classroom.

Answer

I was worried + Because my car broke down.