use the following information for the next 2 questions: This month, a company manufactured 3,900 units of products, using 2,340 kilograms of plastic. The plastic cost the company, in total, $15,444. According to the standard cost card, each unit of product should require 0.53 kilograms of plastic, at a cost of $7.00 per kilogram. 15. What is the material quantity variance? a. $1,911 favorable b. $1,911 unfavorable c. $936 favorable d. $936 unfavorable 16. What is the material spending variance? a. $2,067 favorable b. $2,067 unfavorable c. $975 favorable d. $975 unfavorable