The reaction $A \leftrightharpoons B$; $\Delta H = +24\; kJ/mol$. For the reaction $B\leftrightharpoons C$; $\Delta H=-18$ kJ/mol. The decreasing order of enthalpy of $A, B$ and $C$ follow the order

Question

(a) A, B, C
(b) B, C, A
(c) C, B, A
(d) C, A, B