In the Mass Spectrum of Bromoform,CHBr₃,molecular Ion Peaks Appear at M/z

Multiple Choice

In the mass spectrum of bromoform,CHBr₃,molecular ion peaks appear at m/z 250,251,252,and 253? What is the ratio of the intensities of these peaks?

A) 1:1:1:1
B) 1:2:2:1
C) 1:3:3:1
D) 2:3:3:2
E) 3:2:2:3