Explanation

(d)
During electrophilic substitution electrophile attacks the double bond of benzene ring. The aromatic compounds having electron donating groups undergo electrophilic substitution more easily due to favouable effect of electron donating group.
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(i) $NO_{2},\ COOH\ and\ CHO$ groups are electron withdrawing groups so, they decrease the reactivity of organic compounds.
$(ii) - OH$group is electron donating group, so it increases the electron density in benzene ring ad increases the rate of reaction
$\therefore\ \ \$
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