Identify strongest base from following.

Step-by-step solution

Base strength in aqueous solution depends on the balance between inductive effects, steric hindrance, and solvation stability. Alkyl groups donate electron density through the +I effect, increasing nitrogen's basicity. However, larger alkyl groups introduce steric hindrance and reduce conjugate acid solvation through hydrogen bonding. For methyl-substituted amines: ( CH ₃)₂ NH provides optimal balance with strong inductive effect from two methyl groups, moderate steric hindrance, and adequate solvation of its conju