Answer:
a. Brizon may be sued by TP if it does not comply.
Step-by-step explanation:
As the contract between the two companies stated that Brizon must supply all toys required by Toys Paradise at a fixed rate, and that fee has already been established and accepted by both companies, Brizon must meet the requirement for more toys by Toys Paradise, even if this implies a higher production cost, while the contract is valid.
Thus, if Brizon does not comply with its part of the agreement, it could be sued by Toys Paradise and will likely lose the process.