Rodell Construction Co

Rodell Construction Co. contracted to build several greenhouses for Delmar Corp. The specifications in the contract called for the use of Apex glass. By mistake Rodell installed Remco glass which is of slightly lesser quality than Apex, but in all other respects met Delmar's needs. Which of the following statements is correct?

A) Rodell must install Apex glass or Delmar will not be obligated to accept the greenhouses.
B) Delmar's recovery will be limited to money damages because Rodell's breach of contract was not material.
C) Delmar will not be able to recover any damages from Rodell because the breach was inadvertent.
D) Rodell did not breach the construction contract because Remco glass was substantially as good as the Apex glass.