Mr. Parker sells 10 bottles of wine per weDiminishing returns to an input occur when:

a. all inputs are variable.

b. all inputs are fixed.

c. at least one input is fixed.

d. at least one input is variable.ek at $50 per bottle. He can sell 11 bottles per week if he lowers the price to $45 per bottle. The quantity effect of the sale of an additional bottle would be _______, whereas the price effect of the sale of an additional bottle would be ________.

a. $45; -$50

b. $45; -$5

c. $450; -$500

d. $495; -$550