Answer:
2. because Malia brought cookies
Explanation:
It's a clause with a subject and verb, yet it is not a complete sentence because of the adverb at the beginning that signals it is a dependent clause.
Brutus and Cassius go into Brutus' tent to argue instead of staying out in the open probably for fear of being heard by someone. They are arguing about Caesar's murder, among other things, and they may not want to be discovered.
