Consider the following year-end information for spitzer corporation:
cost of goods sold $420,000
sales revenue $800,000
non-operating expenses $10,000
operating expenses $170,000
income tax expense $80,000

what amount will spitzer report for operating income? select one:
a. $200,000.
b. $120,000.
c. $210,000.
d. $380,000.

Specialization—the division of labor—enhances productivity and efficiency by a) allowing workers to take advantage of existing differences in their abilities and skills. b) avoiding the time loss involved in shifting from one production task to another. c) allowing workers to develop skills by working on one, or a limited number, of tasks. d)all of the means identified in the other answers.