The least probable product from A on reductive elimination isA
(a)
(b)$\mathrm{CH_4}$
(c)
(d)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
From M(n-Pr)(CH₃) one gets butane (direct C–C reductive elimination), CH₄ + propene (β-H elimination, then H–CH₃ elimination) and isobutane (after isomerisation to isopropyl). But-2-ene would need an extra dehydrogenation, so it is least probable (c).