[单选题]
If the scattering angleiy ;zv68c8 7mbo6qudmck2- ty in Compton's sc1h2 /xo6w/bd :a.b rrmqp 87vmjsrr9uattering is 90e. What is the wavelength sdbrb1as7 r rvp/rq6m:ju2 x m8wo9 /h.hift?
A. $1.22 \times 10^{-12} \; m$
B. $2.43 \times 10^{-12} \; m$
C. $3.65 \times 10^{-12} \; m$
D. $4.85 \times 10^{-12} \; m$