Suppose that three people, Abby, Bart, and Carl, work in a small machine shop making tools and other goods out of steel. They generate a lot of scrap metal waste in their shop and are interested paying a recycling service company to come to their office and collect crap for recycling purposes. The recycling company charges $450 per collection visit and will come by once a week for up to 4 times in a given month. Our three office workers are willing to pay (wtp) for a certain amount of services according to the table below: number of visits in a Month 1 2 3 4 Abby wtp (per visit) $300.00 $250.00 $200.00 $150.00 Bart wtp (per visit) $250.00 $200.00 $150.00 $100.00 Carl wtp (per visit) $200.00 $150.00 $100.00 $50.00 total wtp What is the economically efficient number of visits? Group of answer choices 1. 2. 3. 4.