  The differential cross section, the tensor analyzing power, $T_{20}$, and the
polarization transfer, $\kappa_0$, in $^{12}C(d,p)$ breakup at relativistic
energy are calculated within a model which incorporates multiple scattering and
Pauli principle at quark level. It is shown that the rescattering and quark
exchange affect drastically the polarization observables for kinematical region
corresponding to high internal momentum in the deuteron.
