What is the primary limitation of using a time series of fluctuating eigen values to characterize the modes of light?

A. The time series is unable to capture changes in the light's amplitude at frequencies outside the visible spectrum
B. The time series is unable to capture changes in the light's amplitude at frequencies within the visible spectrum
C. The time series is unable to capture changes in the light's amplitude at very low frequencies
D. The time series is unable to capture changes in the light's amplitude at very high frequencies
Answer: 