What Is the Wavelength of a Photon Having a Frequency $\times$

Multiple Choice

What is the wavelength of a photon having a frequency of 11.7 THz? (1 THz = 10¹⁵ Hz)

A) 0.0390 nm
B) 7.76 $\times$ 10^-24 nm
C) 2.33 $\times$ 10^-15 nm
D) 25.6 nm
E) 2.56 $\times$ 10¹⁶ nm