Robledo Corporation Produces and Sells a Single Product

Robledo Corporation produces and sells a single product. Data concerning that product appear below: Fixed expenses are $625,000 per month. The company is currently selling 9,000 units per month. Consider each of the following questions independently.
-This question is to be considered independently of all other questions relating to Robledo Corporation.Refer to the original data when answering this question. The marketing manager believes that a $7,000 increase in the monthly advertising budget would result in a 100 unit increase in monthly sales.What should be the overall effect on the company's monthly net operating income of this change?

A) Decrease of $1,000
B) Decrease of $7,000
C) Increase of $1,000
D) Increase of $8,000