The firm's short-run supply curve is the

A) horizontal summation of the other firms' marginal cost curves.
B) the portion of the firm's marginal cost curve that lies above the firm's average total cost curve.
C) the portion of the firm's marginal cost curve that lies above the firm's average variable cost curve.
D) horizontal at the price where the firm earns zero profit.

Schuepfer inc. bases its selling and administrative expense budget on budgeted unit sales. the sales budget shows 1,800 units are planned to be sold in march. the variable selling and administrative expense is $4.30 per unit. the budgeted fixed selling and administrative expense is $35,620 per month, which includes depreciation of $2,700 per month. the remainder of the fixed selling and administrative expense represents current cash flows. the cash disbursements for selling and administrative expenses on the march selling and administrative expense budget should be: