The correct statement regarding the basicity of arylamines is 

arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalised by interaction with the aromatic ring $\mathrm{\pi }$-electron system

arylamines are generally more basic than alkylamines because of aryl group

arylamines are generally more basic than alkylamines because the nitrogen lone-pair electrons are not delocalised by interaction with the aromatic ring $\mathrm{\pi }$ -electron system.

arylamines are generally more basic than alkylamines, because the nitrogen atom in arylamines is sp-hybridised