Which answer choice provides the best set of labels for wave a and wave b?

wave a: longitudinal wave wave b: transverse wave

wave a: high frequency wave wave b: low frequency wave

wave a: transverse wave wave b: longitudinal wave

wave a: low frequency wave wave b: high frequency wave

The answer is;  Wave A: Low-Frequency Wave Wave B: High-Frequency Wave

Low-frequency waves have longer wavelengths (which is the distance taken to complete one cycle) that high-frequency waves (that have shorter wavelength). Usually, the higher frequency wave is more powerful than the low-frequency waves. An example of a high-frequency wave is gamma rays while an example of the low-frequency wave is radio waves.