Answer:
C. Parents work hard for their children's future; however, children don't always take advantage of the opportunities given to them
Explanation:
Option A doesn't need anything after the word "and"
Option B doesn't need a semicolon before the and
Option D's semicolon should be replaced with a colon, as it is introducing a list.
Option C uses a semicolon to join two independent clauses together, which is the correct use.
