[单选题]
An electron is accelerated through a pote;1(/grl/mdvnqa/gagsg.d55p b, c atntial differenci)(k 8ws*/gh6kx2-k+dkr v8za7fft p:v arjae of 150 V. What is itsgzpk+avk)rvi*x ft( k 8rh6a2 js:7/f-a w8kd wavelength?
A. $0.1 \; nm$
B. $1 \; nm$
C. $1 \; mm$
D. $1 \; cm$