Answer:
C. Cost of Peanuts Purchased
Explanation:
Let x represent number of pounds of peanuts and y represent cost.
We have been given that it costs $6 per pound for peanuts at Blessed Food Market. We are asked to choose the range of the function in terms of cost per pound.
The cost of x pounds of peanuts would be
. We can represent this information in an equation as:

We know that range of a function is set of outputs values.
Since output of our given function is cost of peanuts purchased, therefore, option C is the correct choice.