Answer:
A. Nicolas had known he was in the wrong and couldn't stand Carla judging him.
Step-by-step explanation:
The sentences should be combined to make one simple sentence. A simple sentence is an independent clause that contains a subject and a verb and expresses a complete thought. Both sentences begin with the same subject; therefore, to avoid repetition, it can be removed. This will make the sentence have one independent clause without any dependent clauses.