The answer is c my friend :)))()()
One issue revolving child exploitation is the use of marketing fast food restaurants towards children. It uses them to gain wealth.
If you are looking for the conjuction word in there it is yet
The answer would be - slang words and phrases. American and British English often differ greatly in such words as: highway (AmE) = motorway (BrE), or cookie (AmE) = biscuit (BrE), or diaper (AmE) = nappy (BrE), etc.