A student documents the energy and wavelength of various electromagnetic waves in the presented table. (The term "eV" denotes electron volts, a unit of energy.)

Electromagnetic wave:
?
X-ray
ultraviolet

Wavelength:
0.000000000001
0.00000001
0.0000006

Energy in eV:
1,000,000
1000
10

For the question mark, which electromagnetic wave should the student insert?

A. Microwave
B. Gamma Ray
C. Radio
D. Infrared Wave

The student should insert B. Gamma Ray for the question mark.