In Business Law, please read the case below and answer to the best of your ability the questions in matter. Thank you,

Case :

A contract was concluded for the sale of rice crops lying in a warehouse. The Government requisitioned the rice crops, in pursuance of wartime emergency regulations for the control of food supplies, before it had been delivered, and also before ownership in the goods had passed to the buyer under the terms of the contract.

Question:

Can the seller discharge the contract? Explain?