Regent Plumbing Corporation provides plumbing services. Selected transactions of Regent Plumbing Corporation are described as follows: a) Received $9,000 cash and issued common stock to Sharon Regent b) Paid $6,000 cash for equipment to be used for plumbing repairs. c) Borrowed $9,000 from a local bank and deposited the money in the checking account. d) Paid $900 rent for the year. e) Paid $100 cash for plumbing supplies to be used next year. 1) Completed a plumbing repair project for a local lawyer and received $4,000 cash Calculate the net income. Assume plumbing supplies of $100 are left at the end of the accounting period. O A. $3,900 OB. $4,000 OC. $3,100 OD. $800 Library