Blackbeard's demand functions for grog and bread are M+p1+P2 and M-P1-P2 respectively. What are the quantities of grog and bread that Blackbeard buys if his income and the prices of the goods are such that he buys positive quantities of both goods?

A) M+p1+P2 and 22 2P1 M-P1-P2 2P2
B) M-p1+P2 and 22 2P1 M-P1-P2 2P2
C) M+p1-P2 and 22 2P1 M-P1-P2 2P2
D) M+p1+P2 and 22 2P1 M-P1+P2 2P2