[单选题]
Light of wavelength 550 nm r 8bl0vyba1*)q 8h/ypcvkca.in air is found to travelerh3 fbyl5 x(kh96qq; at $1.96 \times 10^8 \; m/s$ in a certain liquid. Determine the wavelength of the light in the liquid.
A. $550 \; nm$
B. $359 \; nm$
C. $281 \; nm$
D. $303 \; nm$
