A district restaurant manager bought 4 cases of disposable cups for $150 each. Each case contained 3,600 cups. He wants to split the cups equally between 6 restaurants. Which calculation yields the number of cups for each restaurant? A) 3,600 × 6, then 21,600 ÷ 150 B) 3,600 × 4, then 14,400 ÷ 150 C) 3,600 × 4, then 14,400 ÷ 6 D) 3,600 × 6, then 21,600 ÷ 4