[单选题]
A monochromatic light is incident on th.att;c19etiips+r c i5xk j1 6e()f4 ;e nmqbec surface of a metal with work function 2.50 eV. If a 1.0-V stopping potential is required to make the photocurrent zero, what is )(n;meqfc e4b the wavelength of light?
A. $354 \; nm$
B. $423 \; nm$
C. $497 \; nm$
D. $744 \; nm$