According to the law of diminishing marginal utility:

a. you should never consume more of something if your marginal utility is decreasing.
b. if your total utility is increasing as you consume more of something, then your marginal utility must be increasing as well.
c. as you consume less of something, your marginal utility from consuming that good will increase.
d. as you consume less of something, your total utility will decrease.

Doogan corporation makes a product with the following standard costs: standard quantity or hours standard price or rate direct materials 2.0 grams $ 7.00 per gram direct labor 1.6 hours $ 12.00 per hour variable overhead 1.6 hours $ 6.00 per hour the company produced 5,000 units in january using 10,340 grams of direct material and 2,320 direct labor-hours. during the month, the company purchased 10,910 grams of the direct material at $7.30 per gram. the actual direct labor rate was $12.85 per hour and the actual variable overhead rate was $5.80 per hour. the company applies variable overhead on the basis of direct labor-hours. the direct materials purchases variance is computed when the materials are purchased. the materials quantity variance for january is: