A Chinese Restaurant Buys 10 Cups Rice for $1;soy,fish and Oyster

A Chinese restaurant buys 10 cups rice for $1;soy,fish and oyster sauces for $1 each;and assorted vegetables for $20.They create 10 meals with these ingredients and sell each one for $5.How much does this process contribute to GDP?

A) $23
B) $50
C) $73
D) $27