Definition: You are given a question on college chemistry. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: All proteins absorb electromagnetic radiation of wavelength around 190 nm, which corresponds to a π → π* excitation in the protein molecule. In which region of the spectrum is this wavelength found?
(A)X-ray (B)Ultraviolet (C)Visible (D)Infrared

B