Column I (compound)	Column-II (pKb)
A) $N{H}_3$	I) 4.75
B) $C{H}_3-N{H}_2$	II) 3.38
	$\text{ III. }9.38$

Identify the correct match from the following

Less is the pK_b value, higher is the basic character. Aryl amine has highest pK_b value (which means less basic) because the lone pair of electrons of N delocalized on the ring. After that pK_b value of ammonia is higher than CH₃-NH₂ because of the presence of alkyl group, the basic strength of amines increased.