A dependent clause is a group of words that

leaves a thought unfinished

can make sense on its own

makes up a sentence

uses inappropriate punctuation

Question

A dependent clause is a group of words that 

 leaves a thought unfinished 

 can make sense on its own 

 makes up a sentence 

 uses inappropriate punctuation

anonymous · Answer

if you understand what dependent means it would mean that you have to rely on another part of the sentence to finish the thought

anonymous · Answer

@BulletWithButterflyWings

anonymous · Answer

Dependent means it can't be on its own, so you can eliminate which answer choice based on that knowledge?

anonymous · Answer

b

anonymous · Answer

Yes, B can be eliminated, as well as C.
Now, it doesn't necessarily use inappropriate punctuation, because it makes up part of a sentence. So what choice is left?