On November $1,2021,$ Salim signed a one$-$year contract to provide technical services on an as$-$needed basis to Muscat Company, with the contract to start immediately. Muscat Company agreed to pay Salim $$4200$ for the one$-$year period. Salim is confident that Muscat Company will pay that amount, but payment is not scheduled to occur until $2022.$ Salim should recognize revenue in $2021$ in the amount of

Select one:

A$.$ $$700.$

B$.$ $$4200.$

C$.$ $$2100.$

D$.$ $$0.$