a group of words that contain a subject and a verb and do not express a complete thought
Explanation:
A dependent clause is a group of words with a subject and a verb. It does not express a complete thought so it is not a sentence and can't stand alone. These clauses include adverb clauses, adjective clauses and noun clauses.
The answer is B) The tone of the letter is too informal and lacks specific details. That is the answer because it uses opinions and lacks support for the claim. Plz give brainliest answer :) :D.
