What is the total amount of available power?

A c7000 enclosure is fully populated with power supplies. Each power supply will have 2400W
available if the N+1 power mode is configured. What is the total amount of available power?

A.
7200W

B.
12000W

C.
14400W

D.
16800W

Explanation:
http://boardreader.com/thread/Enclosure_Inadequate_Power_To_Power_On_N_6maf9
Xvml1.html

A C7000 enclosure can be fully populated with 6 power supplies. If you multiply
2400 by 6, you will get the answer.