Answer:
Option B.
Explanation:
From the table if Rohit draws a graph to define the sales of the pumpkins, he will take weight on x - axis and price on y-axis.
Increase in sales of pumpkins will be defined by increase in price of the pumpkin with the increase of weight.
Or Slope of the graph =

=

=

= $1.5
Rohit finds that for every increase of 1 pound price increases by $1.5.
Therefore, option B. is the correct option.