(a) 100 mL of 1 M $CH_3COOH$ ($pK_a = 4.74$) at the equivalence point using 1 M NaOH
(b) 50 mL of 1 M $CH_3COONa$ + 25 mL of 1 M HCl
(c) 50 mL of 1 M $CH_3COOH$ + 25 mL of 1 M NaOH
(d) Both (b) and (c)
