Correct!  C. Section 220-3(b), 220-4 and Example 3, Chapter 9. 300 x 200 = 60,000 sq. ft. x 1.5 = 90000 x 1.25 = 112, 500 vA ¸ 120 = 937.50 amp. ¸ 20 = 46.88 circuits _-- OR – 20 amp x 120-volt x 80% = 1920 vA permitted on 20 amp. circuit at 80%. 90,000 ¸ 1920 = 46.88 circuits.

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