Answer:
Option A
Explanation:
Gabriel method is a suitable method for the preparation of primary amines without the loss of carbons. This reaction is used for the preparation of $1^{0}$ aliphatic amine and $1^{0}$ aromatic amine (containing electron-withdrawing group at o-and p-position e.g,$NO_{2}$ group)
Phthalimide on treatment with ethanolic KOH forms potassium salt of phthalimide which on heating with RX followed by either alkaline hydrolysis or hydrazinolysis with hydrazine ($H_{2}N. NH_{2})$ produces the corresponding $1^{0}$ amine.
