Mineral Resource Company Contracts to Provide Several Manufacturers with Tin

Multiple Choice

Mineral Resource Company contracts to provide several manufacturers with tin.When a cartel of tin-producing countries suddenly embargoes future shipments of tin to Mineral Resource so that it cannot fulfill its contracts,the distributor

A) can substitute some other material for the tin.
B) is excused from the performance of its contracts.
C) is liable for breach of contract.
D) must still supply the tin needs of its customers.