Final answer:
The material quantity variance is -$4,000. Option D
Step-by-step explanation:
To find the material quantity variance, we need to calculate the difference between the standard quantity of material and the actual quantity used, and then multiply it by the standard price per unit.
Standard Quantity = 100 square feet per unit x 200 units = 20,000 square feet
Material Quantity Variance = (Standard Quantity - Actual Quantity) x Standard Price per unit
= (20,000 square feet - 21,000 square feet) x $4 per square foot
= -1,000 square feet x $4
= -4,000
Therefore, the material quantity variance is $4,000. Option D