A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?  Choose the correct choice.
A) 238 ways  B) 287 ways  C) 266 ways  D) 108 ways  E) 121 ways
Explanation:   The boy can select one trouser in nine ways.   The boy can select one shirt in 12 ways.   The number of ways in which he can select one trouser and one shirt is   9 * 12= 
<gadget id="calculator">  9 * 12</gadget>
<output>108</output>
108 ways.   Answer: 108 ways
<result>D</result>
A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?