An operating segment is a reportable segment if. PLEASE EXPLAIN WHY!!!!

a. its operating profit is 10% or more of the combined operating profit of profitable segments.

b. its operating loss is 10% or more of the combined operating losses of segments that incurred an operating loss.

c. the absolute amount of its operating profit or loss is 10% or more of the company's combined operating profit or loss.

d. None of these answers are correct.