Which switch would the spanning tree protocol select as a root bridge?

A service technician is deploying four Dell N-Series switches in a company’s network. The technician has enabled the spanning tree protocol on the switches.

Which switch would the spanning tree protocol select as a root bridge?
A . 22-33-44-55-66-77 : 32768
B . 11-22-33-44-55-66 : 36864
C . 22-33-44-55-66-78 : 32768
D . 11-22-33-44-55-65 : 32768

Answer: D