The cost of 3 kg of sugar is $15. What will the cost of 8 kg of sugar be?	Select the correct option
A) 20  B) 40  C) 80  D) 160  E) 180
3 kg costs $15   1 kg costs $5   8 kg costs $40   The answer is 40.
<result>B</result>
The cost of 3 kg of sugar is $15. What will the cost of 8 kg of sugar be?