Which choice correctly describes the waves in the electromagnetic spectrum?

Question

The waves within the electromagnetic spectrum are all longitudinal waves which move at the same speed in a vacuum.
The waves within the electromagnetic spectrum are longitudinal and transverse waves which move at the same speed in a vacuum.
The waves within the electromagnetic spectrum are all transverse waves which move at different speeds in a vacuum.
The waves within the electromagnetic spectrum are all transverse waves which move at the same speed in a vacuum.
Is it the third one?

Answer 1

nope ... but close

a prism "splits" light because the glass has an index of refraction
... different colors (frequencies) have different speeds ... in glass

Answer 2

whats the correct one then ?

Answer 3

The bands within the spectrum are made of fluctuating electric and magnetic fields and have a wide range of frequencies and wavelengths.

Answer 4

answer is 1,4,5 LOOOOl