Tristearin (molar mass 890 g/mol) is saponified completely by NaOH. Use Na = 23, so sodium stearate has molar mass 306 g/mol. The mass of soap formed from $1.78\mathrm{kg}$ of tristearin is

1. A$0.612\mathrm{kg}$
2. B$0.918\mathrm{kg}$
3. C$1.836\mathrm{kg}$
4. D$5.508\mathrm{kg}$