By which of the following reactions can `MIC` (methyl isocyante) be obtained?
A. `CH_(3)-overset(o+)(N)-= overset(ɵ)C + HgO rarr`
B. `CH_(3)-overset(o+)(N)-= overset(ɵ)C + O_(3) rarr`
C. `CH_(3)-overset(o+)(N)-= overset(ɵ)C + S rarr`
D. `CH_(3)-overset(o+)(N)-= overset(ɵ)C + DMSO rarr`