In boating, colored flags arranged in various orders and combinations have been used for centuries to convey messages to other boats and ships or the persons on shore. If you have three red, four green, and two blue flags, how many different messages (arrangements) could you put up on the mast of the ship if you used only four flags at one time?
A. 362,880
B. 72
C. 3,024
D. 504
E. 126
Answer: C
Computer Science & Information Technology
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