In which of the following reactions, standard reaction entropy change $(\Delta S°)$ is positive and standard gibb's energy change $(\Delta G°)$ decreases sharply with increasing temperature ?

Question

( A ) $CO(g) +\frac{1}{2}O_2(g)\rightarrow CO_2(g)$
( B ) $Mg(s)+\frac{1}{2}O_2(g)\rightarrow MgO(s)$
( C ) $\frac{1}{2}C\;graphite +\frac{1}{2}O_2(g)\rightarrow\frac{1}{2}CO_2(g)$
( D ) $C\;graphite+\frac{1}{2}O_2(g)\rightarrow CO(g)$