Poweroxi Inc

Poweroxi Inc. produces rocket propellant fuel that is used in space shuttles. NASA is an agency that requires rocket propellant fuel to send its rockets to space. NASA enters into a contract with Poweroxi Inc. to purchase all of the propellant fuel it will need that year from Poweroxi. Which of the following conditions would constitute a breach in contract?

A) if Poweroxi sold to another purchaser
B) if Poweroxi sold to another purchaser at a lower price
C) if NASA purchased fuel from another seller
D) if NASA stopped purchasing from Poweroxi due to lack of need