The complete predicate in this sentence is A. mopped his brow, exhaled sharply, and picked up his phone.
B and C aren't correct, because they aren't complete predicates - something is missing.
D isn't correct, because <em>looking up from his computer monitor </em>is not a predicate, it is an adverb phrase.
Questioned a question: what story is this about
The answer is (c) note the main ideas. If you already note the main idea it will help you better.
Answer: Developing character
Explanation: