Answer:
The answer is C.
Explanation:
Definition of throng: (of a crowd) fill or be present in (a place or area).
You can infer that thronged means the town started to get busy since we see the streets began to fill with people and shops began to open. Since Ivan wanted to be alone, this would upset him.
the adjective in the sentence is broken
Some are. Some aren't. No human is very good at detecting deception.
Highly responsive is your answer.