Answer:
I am almost 100% sure that it's the top 1... Sorry I'm not completely sure, but mostly
Your answer is Bob Cratchit
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.
D. meeting one particular dog
A gerund phrase begins with a -ing word and then includes any modifiers and objects, so A, B and C are not the correct answers.