I would say your answer is A. Hoped i helped!
When your text states that communication is unavoidable, it means that people will probably associate meaning to your actions, even when you don not intend to speak of something.
Answer: The verb tack means to attach, add, or change course. As a noun, tack refers to a small nail, the direction of a ship, or a course of action.
Hope This Helps
https://byjus.com/govt-exams/direct-indirect-speech-rules/
Answer: A. "full of pollutants"
Explanation:
A would be the Pollute-tion
B would be the Pollute-able
C would be the Pollute
D would be Pollute-er