[单选题]
If the scattering angle in Compton's scattering is 90e. What is )+8v,m ytzdd9pv-*p lpww-ek the wavnu o.wp54 8y y(i9mfpgelength sn 98. 5foip4pygyw(um hift?
A. $1.22 \times 10^{-12} \; m$
B. $2.43 \times 10^{-12} \; m$
C. $3.65 \times 10^{-12} \; m$
D. $4.85 \times 10^{-12} \; m$