How does static friction do work?

1. The problem statement, all variables and given/known data
Static friction can never do work on an object.
a. True
b. False

2. Relevant equations
The answer is False, indicating that static friction can do work.

3. The attempt at a solution
W=fd, when d=0 w=0 regardless of the force.

How does this work? Or is the online homework wrong.

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