Nisha told Monica, “What a beautiful dress you are wearing!”

The correct answer is: C. Nisha exclaimed that Monica is wearing a very beautiful dress.

The sentence “What a beautiful dress you are wearing!” is an exclamation. It is used to express surprise, admiration, or other strong emotion. In this case, Nisha is expressing her admiration for Monica’s dress.

Option A is incorrect because it does not use the word “exclaimed.” Option B is incorrect because it does not specify that Monica is wearing the dress. Option D is incorrect because it does not use the word “exclaimed.”

Here are some other examples of exclamations:

• Wow! That’s amazing!
• Oh my gosh! I can’t believe it!
• You’re kidding me!
• I’m so excited!
• I can’t wait!