Stalemate n. (ˈstāl-ˌmāt) a situation in which neither side can win nor gain an advantage

which sentence uses the definition of the word stalemate given in the dictionary entry?

a. after the stalemate lost focus during the chess match, his opponent pounced and moved closer to victory.

b. the two debate teams were at a stalemate, so the judges decided to call the match a tie.

c. if you are ever faced with a stalemate, experts say that you should first speak with a trusted adult and then, if necessary, notify the police.

d. if you stalemate with a friend, be sure to reconcile before you lose that friendship.