बेंजीन का नाइट्रीकरण (Nitration) किस प्रकार की प्रतिक्रिया तंत्र का एक उदाहरण है?

Given below are two statements: Statement I: Benzene is nitrated to give nitrobenzene, which on further treatment with CH3COCl / AlCl3 will give m-nitroacetophenone. Statement II: The -NO2 group is a meta-directing and deactivating group. In the light of the above statements, choose the most appropriate answer:

Consider the following reaction sequence: Aniline + HNO2/HCl (0-5°C) → P P + CuCN/KCN → Q Q + SnCl2/HCl followed by H3O+ → R R + CH3MgBr followed by H2O → S S + Zn-Hg/HCl → T The percentage of nitrogen in product 'T' formed is: (Nearest integer) (Given molar mass in g mol-1 H:1, C:12, N:14, O:16)