Answer: drink a 20-ounce sports drink rich in electrolytes before his run
Explanation: I'VE THOUGHT LONG AND HARD ON THIS QUESTION AND....
this is clearly the best option for Eli. my friend tried this and reached 7 miles too, so if she can do it, why can't Eli? Also, Eli must have enough energy to keep him going because if he gets tired he would want to stop and that's not going to help him reach is goal