The plot shows the variation of – ln KP versus temperature for the two reactions.


Identify the correct statement:
(a) At T < 1200 K, oxidation of carbon is unfavourable.
(b) Oxidation of carbon is favourable at all temperatures.
(c) At T < 1200 K, the reaction MO(s) + C(s) → M(s) + CO(g) is spontaneous.
(d) At T > 1200 K, carbon will reduce MO(s) to M(s).