Typical IR Absorptions Occur in the 650-3700 Cm^-1 Wavenumber Range

Typical IR absorptions occur in the 650-3700 cm^-1 wavenumber range. These result from energy absorption from IR radiation by
(Pay attention to your units!)

A) molecular vibrations that occur roughly 10¹³ to 10¹⁴ times per second.
B) molecular rotations that occur roughly 10¹³ to 10¹⁴ times per second.
C) molecular vibrations that occur roughly 10^-13 to 10^-14 times per second.
D) molecular vibrations that occur roughly 10¹⁰-10¹¹ times per second
E) molecular vibrations that occur roughly 10^-11 to 10^-12 times per second.