The value of $K_{p1}$ and $K_{p2}$ for the reactions <br> $X\rightleftharpoons Y + Z$ ....(1) and <br> $A \rightleftharpoons2B$ ....(2) <br> are in ratio of 9 : 1. If degree of dissociation o X and A be equal, then total pressure at equilibrium (1) and (2) are in the ratio :

Question

( A ) 1 : 9
( B ) 36 : 1
( C ) 3 : 1
( D ) 1 : 1