At a grocery store, almonds cost $5.99 per pound. In a relation, the input is the number of pounds of almonds and the output is the cost.
Is this relation a function? Why or why not?
A. Yes, because almonds can cost different amounts.
B. Yes, because one input (number of pounds of almonds) will always have the same output (cost).
C. No, because almonds always cost $5.99 per pound.
D. No, because different inputs (numbers of pounds of almonds) will have different outputs (costs).