So basically you have to write the essay about a quotation the you have read in a article or book in the way you read it like how did you interpreted it
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.
A. Greetings, it is the most important literate rule that the first letter of every new sentence be capitalized