Answer:
The product owner should say:
The team will need about 3 Sprints more to complete the product release.
Step-by-step explanation:
As given the team's average velocity in the past 3 Sprints has been 65 points and best sprint among three was 85 points. There were 140 story points worth of work in the project.
So, if the team keep such a performance then,
three sprints can get = 3 x 65 points
Three sprints can get = 195 points
So, the team will need about 3 sprints more to complete the product release.