Sharon Samson Starts a Plumbing Service, Reliable Waterworks, a Proprietorship

Sharon Samson starts a plumbing service, Reliable Waterworks, a proprietorship. Selected transactions are described as follows:
A. Sharon deposits $7,000 into a new checking account for the company.
B. Reliable pays $4,000 cash for equipment to be used for plumbing repairs.
After all of the transactions, what is the amount of total assets?

A) $25,700
B) $ 5,200
C) $24,200
D) $20,200