We all need to have food to live but what is the cheapest way to get it?
Options:
- steal
- purchase food from webvan.com
- eat
- work for
- grow food Let's give stream of consciousness first:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Food comes from plants and trees. Cheapest way means involving least money. Growing food involves least money.
Therefore, the answer is grow food.