Which information is necessary to solve this story problem? 
 
There were 16 people at a backyard barbeque. The barbeque lasted for 4 hours. Barry bought 2 hot dogs for each person. Each hot dog cost $1.25. How much did Barry spend altogether?



 
A.
2 hot dogs, 16 people, $1.25


 
B.
4 hours, 16 people, 2 hot dogs


 
C.
2 hot dogs, 16 people


 
D.
2 hot dogs, $1.25