A student changes 1-iodopropane, $\text{C}_3\text{H}_7\text{I}$, into butanoic acid, $\text{C}_3\text{H}_7\text{CO}_2\text{H}$, using a two-step chemical synthesis. During the first of these two stages, which reagent is used to react with 1-iodopropane?
- Aaqueous sodium hydroxide
- Bethanolic ammonia
- Cethanolic potassium cyanide
- Dethanolic sodium hydroxide