Which combination will produce an alkaline buffer in water?

0.10 mol $NH_3$ and 0.05 mol $H_2SO_4$

0.10 mol $CH_3COOH$ and 0.05 mol $NaOH$

0.10 mol $CH_3COOH$ and 0.50 mol $NaOH$

0.50 mol $NH_3$ and 0.10 mol $H_2SO_4$