(20 POINTS IF RIGHT) (BTW I couldn't find science so pls don't delete my question its happen a lot and I really need the answer)

The chart shows the bids provided by four engineers to test a prototype.

Which is best supported by the information in the chart?

Jin is less cost-effective than Greg because he charges more per day than Greg.
Zoe is more cost-effective than Orion because she takes less time to complete the project.
Jin is the least cost-effective because he charges the most per day.
Greg is the least cost-effective because he charges the most for the project.