Which one of the following functional groups is not meta directing?

Key Idea The group which contain double bond in its structure and have more electronegative element bonded with the atom (which is bonded with the C-atom of benzene ring) gives $m$-directing products and those do not have double bond and have lone pair electron over the atom, (which is bonded with the benzene ring) do not give m-directing product (they give o and $p$-products). (a) - $\mathrm{COOH}$ group, contains double bond in its structure and - C-atom, which is bonded with the ring has more electronegative oxygen atom bonded with it. i.e.
$\therefore$ It gives $m$-directing product. (b) $-\mathrm{NO}_2$ group, contains double bond in its structure and $\mathrm{N}$-atom, which is bonded with the ring has more electronegative oxygen atom bonded with it. i.e.
$\therefore$ It gives $m$-directing product. (c) - CHO group also contains double bond in its structure and $\mathrm{C}$-atom, which is bonded with the ring has more electronegative oxygen atom bonded with it. i.e.
$\therefore$ It gives $m$-directing product. (d) $-\mathrm{O}-\mathrm{CH}_3$ group, has no double bond in its structure and $\mathrm{O}$-atom, which is bonded with the ring has less electronegative $\mathrm{C}$-atom, bonded with it. i.e.
Thus, it does not give $m$-directing product. Hence, option (d) is the correct.