Two conformers A and B interconvert rapidly (barrier lower than any reaction barrier), and each reacts irreversibly to PA and PB respectively. Which statements are correct?

1. AIf the transition state leading to PA is $5.7\mathrm{kJ}\mathrm{mo}{\mathrm{l}}^{-1}$ lower than that leading to PB, then PA : PB $\approx$ 10 : 1 at 298 K
2. BThe product ratio is determined by the free-energy difference of the two transition states
3. CThe product ratio equals the equilibrium ratio of the populations of A and B
4. DThe more populated conformer necessarily gives the major product