How much power is reserved from the PSE budget by the devices referenced above?

A Dell EMC N3048P with two power supplies is configured for Class-Based Power Management.

The switch has the following devices connected and fully operational:

10x 802.3af PDs negotiating as Class0 devices

10x 802.3af PDs negotiating as Class4 devices

10x 802.3at PDs negotiating as Class4 devices

How much power is reserved from the PSE budget by the devices referenced above?
A . 462 Watts
B . 650 Watts
C . 838 Watts
D . 1026 Watts