When you see a sentence not make sense it's usually because you are leaving out important words or mixing them up in the wrong way in that sentence so due to this knowledge a dangling modifier would be C.
Say this:
Me and (state the name) were due to reach the common goal of getting full marks on our Language Arts quiz. But, we had a disagreement on what the right answer for question (random) is.
I hope this helps you.
Answer:
Deepak told that he cannot solve the question.
Explanation:
said changes into told and according to the rules name changes into 1st person.
To my mind, the answer ( B ) is the inappropriate sentence. In a formal writing informal tone must be avoided as well as colloquial expressions.