Arrange These Spectral Regions in Order of Increasing Frequency  (X-Rays

Multiple Choice

Arrange these spectral regions in order of increasing frequency  (X-rays, Microwaves, Ultraviolet, Visible) .

A) Microwaves < Visible < Ultraviolet < X-rays
B) Microwaves < Visible < X-rays < Ultraviolet
C) Ultraviolet < X-rays < Visible < Microwaves
D) Ultraviolet < Visible < X-rays < Microwaves
E) X-rays < Microwaves < Ultraviolet < Visible