Myles opened a money market account two years ago with a $3,500 deposit and made no other withdrawals or deposits. If the account does not meet the minimum account balance of $5,000 each month, a monthly fee is withdrawn from the account. The equation below shows the balance of the account, where t is equal to the number of months the account has been open. M(t) = 3,500 - 50t

Myles creates a graph to show the account balance since the account was opened. If the graph continues forever, which of the following describes the end behavior of the graph?
A.
As t approaches positive infinity, M(t) approaches positive infinity.

B.
As t approaches positive infinity, M(t) approaches zero.

C.
As t approaches positive infinity, M(t) approaches negative infinity.

D.
As t approaches positive infinity, M(t) remains constant.