The compound Forms nitro so amines when the substituents are [Roorkee 1999]

• A.                 \[{{R}_{1}}=C{{H}_{3}},\,{{R}_{2}}={{R}_{3}}=H\]
• B.                 \[{{R}_{1}}={{R}_{2}}=H,\,\,{{R}_{3}}={{C}_{2}}{{H}_{5}}\]
• C.                 \[{{R}_{1}}=H,\,\,{{R}_{2}}={{R}_{3}}=C{{H}_{3}}\]
• D.                 \[{{R}_{1}}=C{{H}_{3}},\,\,{{R}_{2}}={{C}_{2}}{{H}_{5}},\,\,{{R}_{3}}=H\]