The effect on the accounting equation of the business buying a computer worth RM900, paying RM450 cash and owing RM450 to be paid in 30 days' time is:
a. increase the asset computers, decrease the asset cash, decrease the liability accounts payable
b. decrease the asset computers, increase the asset cash, decrease the liability accounts payable
c. increase the asset computers, increase the asset cash, decrease the liability accounts payable
d. increase the asset computers, decrease the asset cash, increase the liability accounts payable