A buyer in Snerling enters into a sales contract with a seller in Wamapoke. If the contract does not mention the place for delivery of the goods, the place of delivery will be:

a$.$ at the seller's business or residence in Wamapoke.

b$.$ irrelevant since the contract is void.

c$.$ as stated in all destination contracts.

d$.$ at the buyer's business or residence in Snerling.