Rank the following vegetables from least to most nutritious: potatoes, carrots, kale.
1. Potatoes
2. Carrots
3. Kale
Complete the following task based on the instruction and optional input provided.### Instruction:
Rank the following vegetables from least to most nutritious: potatoes, carrots, kale.

### Output:
1. Potatoes
2. Carrots
3. Kale