The correct option with respect to the Pauling electronegativity values of the elements is: Ga < Ge, Si < Al, P > S, B < C

Electronegativity increases across a period because the number of charges on the nucleus increases. That attracts the bonding pair of electrons more strongly. The correct order of electronegativity is: B < C, Al < Si, P < S, Ga < Ge. Hence, the correct options are A and D.