Directions: The question has a set of four sentences. Each sentence has a pair of words/phrases that are italicized and highlighted. Select the most appropriate word or phrase to form grammatically and syntactically correct sentences. Then, from the options given, choose the best one.

The fetid (A) / feted (B) smell coming out of the drain was unbearable.

It is fairly certain that the nomination will be fair (A) / fare (B) and just.

The fowl (A) / foul (B) are prone to H5N1 viral attack.

He agreed to forgo (A) / forego (B) his claims to the property chafed.