Atelephone company offers two services: landlines and internet. there are two types of customer demographics for these services. one customer demographic values the internet service at $40/month, but only values landlines at $10/month. the other customer demographic values the internet service less, at $30/month, but values the landline telephone service at $40/month. the two customer demographics are each comprised of 100 persons. internet and landlines each cost $30/month to supply to each customer who purchases them (so the cost to supply both products to a customer is $60/month). which pricing scheme should the telephone company adopt?