44.
A:
Radiowaves, Microwaves, Infrared rays, Ultraviolet rays, X-rays
B:
X-rays, Ultraviolet rays, Infrared rays, Microwaves, Radiowaves
C:
Radiowaves, Infrared rays, Ultraviolet rays, Microwaves, X-rays
D:
Radiowaves, Infrared rays, Microwaves, Ultraviolet rays, X-rays
The answer is: A