电客车编组形式哪一个是正确的为:( )
AMp + * Tc * M = M * Tc + * Mp
B+Tc * Mp *M = M * Mp * Tc +
CM * Mp *Tc +=Tc + * Mp * M
D+Tc * M *Mp = M * Mp * Tc +
AMp + * Tc * M = M * Tc + * Mp
B+Tc * Mp *M = M * Mp * Tc +
CM * Mp *Tc +=Tc + * Mp * M
D+Tc * M *Mp = M * Mp * Tc +