It is found that if a neutron suffers an elastic collinear collision with deuterium at rest, fractional loss of its energy is $p_d$, while for its similar collision with carbon nucleus at rest, fractional loss of energy is $p_c$. The values of $p_d$ and $p_c$ are respectively :

Question

( A ) $(.28, .89)$
( B ) $(.89, .28)$
( C ) $(0, 0)$
( D ) $(0, 1)$