The correct answer is B. Fretricide.

Fretricide is a word that does not exist. The correct word is fratricide, which means the killing of one's brother or sister.

Frostbite is the damage to body tissue caused by freezing.

Frenzy is a state of wild excitement or disorder.

Franchise is a right or privilege granted to someone, especially the right to sell goods or services in a particular area.