For an ideal binary liquid solution with PA0>PB0, which relation between XA (mole fraction of A in liquid phase) and YA (mole fraction of A in vapour phase) is correct, XB and YB are mole fraction of B in liquid and vapour phase respectively:
A. XA = YA
B. XA > YA
C. XA/XBD. XA, YA, XB and YB cannot be correlated