3. since it is an adverb and it fits the most because others are verbs, nouns and even adjectives
Answer:
Option C
Explanation:
Since "While walking to his next class" is an introductory phrase, it requires a comma afterwards.
It is verb type sentence ==> is your answer.
I hope this helps ≧ω≦
Sorry if wrong :-(
Answer:
C. Searched
Explanation:
"Patiently" discludes any non-methodical search.
"Searched" is the only neutral term.
Answer:B
Explanation: a concrete statement leaves no room for opinion. Like B