Answer: People who assail competition (b.) attack competition.
Explanation:<u></u><u>The word "assail" is a verb and it makes reference to the act of attacking something or critizing it strongly</u>. Therefore, "assail" is a transitive verb and<u> two of its synonyms are "attack" and "assault"</u>. Taking this into account, "people who assail competition" means "people who attack competition". In this sentence, "assail" is part of a relative clause which has been introduced by "who".
