Answer:
Option A
Explanation:
(A) The committee mentioned in the sentence has obviously studied some specific problems, and has offered suggestions to solve them. If the committee has also warned that the non-implementation of these suggestions would eventually render the problems insoluble, it means that, according to it, these problems would become worse with the passage of time. Among the choices, exacerbated is the only word which has this meaning, and is the answer. (Insurmountable and insoluble have the same meaning: therefore, it is not logical to say that 'insurmountable problems would eventually become insoluble problems' would eventually become insoluble. So, (B) is not the appropriate choice.
