Can someone help with these question......?

You have just purchased a new Dell PowerEdge R520 Rack Server. The server is equipped with two Xeon E5-2400 CPUs, 32 GB RAM, four 1 TB SAS hard drives, and two 750-watt power supplies. You have a 21-inch LCD monitor connected to your server. You want a UPS to keep your server running in the event of a power failure for up to 20 minutes. You prefer a rack-mounted solution. Use the UPS selector tool at APCs Web site (a well-known UPS vendor). The UPS selector is at www.apcc.com/tools/ups_selector/. Determine which model UPS will work well for this server, and state your reasons.

These are wrong answer in chegg please provide the correct answer........................................

(The UPS model that will work best for this situation is APC Smart-UPS X 3000VA Rack/Tower LCD 100-127V.)

Reasons are:

-Rack mounted solution.

-It will give the best performance for this configuration.

-Provides 2000W

-This will keep our server running in the event of power failure for upto 20mins

THESE ANSWERS ARE WRONG ............!