Answer:
Pre-order: Lisa, Bart, Homer, Flanders, Marge, Maggie, Smithers, Milhouse
In-order: Bart, Flanders, Homer, Lisa, Maggie, Marge, Milhouse, Smithers
Post-order: Flanders, Homer, Bart, Maggie, Milhouse, Smithers, Marge, Lisa
Explanation:
The required orders are mentioned.