【正确答案】 B

【答案解析】You could solve this by multiplying each quantity and comparing. However, you could also solve by thinking about the quantities in the following way:
14(256) 15(255)
=14(255+1) =(14+1)(255)
=14(255)+14(1) =14(255)+1(255)
=14(255)+14 =14(255)+255
Thus it is apparent that Quantity B is greater than Quantity A.