In Terms of Osmotic Pressure Exerted, Which Comparison of Dissolved

In terms of osmotic pressure exerted, which comparison of dissolved chemicals is true?

A) 1 mmol taurine = 1 mmol Na⁺
B) 1mmol of glycine > 1 mmol NaCl
C) 1 mmol trimethylamine oxide > 1 mmol Na⁺
D) 1 mmol Mg²⁺ > 1 mmol Na⁺