`v_(rms), v_(av)` and `v_(mp)` are root mean square average and most probable speeds of molecules of a gas obeying Maxwellian velocity distribution. Which of the following statements is correct ?
A. `v_(rms) gt v_(av) gt v_(mp) gt v_(s)`
B. `v_(av) gt v_(mp) gt v_(rms) gt v_(s)`
C. `v_(mp) gt v_(av) gt v_(rms) gt v_(s)`
D. `v_(rms) gt v_(av) gt v_(s) gt v_(mp)`