B. The fertilizers used by farmers contaminate the river.
Your missing half the question! i would answer but need more info
"abnormal" means "not normal" - so it can mean "not standard" -therefore if someone is developing at a different rate than most of the people you could say that they are not developing in a standard way - so you could say that they are developing abnormally. The sentence is correct, although it might not be the best word to use.
The "Federal Election Commission (FEC)" is the governmental body that regulates political action committees (PACs). The Federal Election Commission (FEC) is a independent administrative office whose reason for existing is to uphold crusade finance law in United States government elections.
Philadelphia was the first capital to be established in the United States
