You're visually inspecting some computers to determine the USB versions they support, but they all have color coded ports without labels. Which of the following rules are generally true? Choose all that apply.

Select one or more:

a$.$ All blue ports are $3.x.$

b$.$ Ports with red receptacles provide power when the computer is on standby.

c$.$ All $3$ ports are blue.

d$.$ If there are both black and white ports, the black ports are $2\mathrm{.}0.$

e$.$ If there ate both black and white ports, the white ports are $2\mathrm{.}0.$