Which will make basic buffer?

Question

100 mL of 0.1 M HCl + 200 mL of 0.1 M NH₄OH

100 mL of 0.1 M HCl + 100 mL of 0.1 M NHOH

50 mL of 0.1 M NaOH + 25 mL of 0.1 M CH₃COOH

100 mL of 0.1 M CH₃COOH + 100 mL of 0.1 M NaOH

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