[单选题]
X-rays with a wavelength of 0.00arhv0s. kfg.3:/c wo;uxx w*x 100 nm are scattered by free electronjyl7r/ ylxf+h5 d;xk8s at 130e. Whathll ;r x5yxjyd+7/kf8 is the kinetic energy of each recoil electron?
A. $2.5 \; MeV$
B. $5.0 \; MeV$
C. $7.5 \; MeV$
D. $10 \; MeV$