Answer:
Underappreciated
Step-by-step explanation:
To begin, the prefix "under" means "not enough." The prefix "over" means "above" or "too much." Therefore, we can cross off overwhelmed and overdone and look more at underappreciated and underhanded.
Here are the definitions for the first two choices:
Underappreciated - Not valued or appreciated highly enough
Underhanded - Acting or done in a secret or dishonest way
Based upon the definitions above, "underappreciated" best fits the definition given.
Hope this helps :)