Consider Labour That Is Hired for $18 Per Hour

Multiple Choice

Consider labour that is hired for $18 per hour.If the last hour hired produces 8 units of output which sells for $2 per unit,that labour-hour adds ________ to the firm's profit and so ________ labour should be hired.

A) -$128; more
B) -$2; less
C) $16; less
D) $16; more
E) $0; no