The feasible reactions are:

Consider the following reaction:

The starting substance $\mathrm{A}$ can be:

Supply the structures to the bracketed compounds $\left[A\right]$ to $\left[L\right].$

Supply the structures to the bracketed compounds [E] and [F].

Supply the structures to the bracketed compounds $\left[\mathrm{A}\right]$ to $\left[\mathrm{L}\right]$

(c)   

Supply the structures to the bracketed compounds $\left[\mathrm{H}\right]$ to $\left[\mathrm{I}\right]$.

(d) $\mathrm{TNT}+{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO}⟶\left[\mathrm{H}\right]+\left[\mathrm{I}\right]$

Supply the structures to the bracketed compounds $\left[\mathrm{J}\right]$ to $\left[\mathrm{K}\right].$

(e)   

Supply the structures to the bracketed compound.