Which of the following compounds will give a significant amount of meta-product during mono - nitration reaction?

The correct option is C
In the presence of nitrating mixture,
($\text{conc.}HN{O}_3+\text{conc.}{H}_{2}S{O}_4$), aniline gives a significant amount of ($\approx 47$%) meta product because in presence of $H_{2}S{O}_4$ its protonation takes place and anilinium ion is formed.

Here, Anilinium ion is strongly deactivating and meta-directing in nature. So, it gives a meta-nitration product.