The foliowing transactions occurred during July:

$-$Received $$900$ cash for services provided to a customer during July.

$-$Received $$2,200$ cash investment from Barbara Hanson, the owner of the business.

$-$Received $$750$ from a customer in partial payment of his account receivable which arose

from sales in June.

$-$Provided services to a customer on credit, $$375.$

$-$Signed a promissory note for $$6,000.$

$-$Received $$1,250$ cash from a customer for services to be rendered next year.

What was the amount of revenue for July?

A$.$ $$900$

B$.$ $$1,275$

C$.$ $$2,525$

D$.$ $$3,275$

E$.$ $$11,100$