What is an advantage of using auto mode versus static mode of power allocation when an access point is connected to a PoE switch port?

What is an advantage of using auto mode versus static mode of power allocation when an access point is connected to a PoE switch port?
A. It detects the device is a powered device
B. All four pairs of the cable are used
C. Power policing is enabled at the same time
D. The default level is used for the access point

Correct Answer: D
Explanation/Reference:
Explanation:

https://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3.2_0_se/multibook/configuration_guide/b_consolidated_config_guide_3850_chapter_011010.html