[单选题]
A monochromatic light in8; zv) shx ujw:pm+;rs incident on thekjh: 1k/. oy:j3 yv tgrhxgo5. surface of a metal with work function 2.50 1hythy.jj :. gov35xk/kgro:eV. If a 1.0-V stopping potential is required to make the photocurrent zero, what is the wavelength of light?
A. $354 \; nm$
B. $423 \; nm$
C. $497 \; nm$
D. $744 \; nm$
