Concept:Fornication is a fixed punishment crime under Islamic law with a prescribed number of lashes.Explanation:Islamic law distinguishes between fornication by unmarried persons and adultery by married persons.For fornication committed by an unmarried adult, the prescribed punishment is 100 lashes.This is based on the Qur'anic directive that the fornicator and the fornicatress should each be punished with 100 stripes.Therefore, the correct option is B.Answer:100 lashes (Option B).