Answer:
She finished her work and then took a long lunch.
Explanation:
Commas are used to separate independent clauses and also to provide short pauses. Moreover, it is also used to separate lists.
The correct comma placement for the given sentence is "She finished her work and then took a long lunch." In this case, a comma is not necessary because the second verb does not have a subject in front. The subject "she" appears only in front of the first verb "finished".
Thus, the correct answer is the second option.
