Melody's Piano School operations for the month of May were limited to the following transactions: Provided $400 of piano lessons to students who paid in cash. Provided $100 of piano lessons on account. Collected $300 from students who took piano lessons during April. Paid April's piano rental bill of $100. Received May's piano rental bill of $150 and set it aside for payment in June.

Use the information above to answer the following question. Assuming that the company uses cash basis accounting, what is net income for May?

A) $350.

B) $600.

C) $800.

D) $300.