the answer is C you can argue both about that
Ideas are the key to creativity and succession, discoveries, of course discover, and take you to places you’ve never been.
B.
<span>Unemployment is high in many fields, but there are jobs available in telecommunications.
A comma is used when it is placed after the end of one independent clause and the beginning of another which follows one such clause. The two independent clauses must be joined with words known as co-ordinating conjunctions. Examples of such words are, but, and,or so etc.
In this sentence but is used, </span>preceded by a comma so it is the right one.
Explanation:
answer-
It allows the boys to share their talents for the benefit of everyone.