Select the arrangement of electromagnetic radiation which starts with the lowest wavelength and increases to greatest wavelength.

a$.$

gamma rays, infrared, radio, ultraviolet

b$.$

gamma rays, radio, ultraviolet, infrared

radio, ultraviolet, infrared, gamma rays

radio, infrared, ultraviolet, gamma rays

gamma rays, ultraviolet,$$infrared$,$radioConsider the following system:

Threads: $4$ threads named $T,T1,T2,$ and $T3$

Resource types: $2$ resource types: R$1(12$ instances$)$ and R$2(9$ instances$)$

Snapshot at time TO:

Is the system in a safe state?

If yes, what is the safe sequence?

If no$,$ can you modify the available resources to make it safe?

What would happen if $T1$ requests an additional instance of $R2?$

Suggest a resource allocation strategy that could prevent deadlocks

in this system.