hi jatinpreet,

i think the answer is (b), and (c)

explanation :

G = H - TS

firstly, the process is spontaneous as the liquified perfume is converted into vapour. when liquid is converted to gas, entropy is +ve. so, (b) is correct.

secondly, as the process is purely spontaneous, there is no heat change involved. that means enthalpy is zero. therefore, (c) is also correct.

hope it is clear.