You own a credit card company. You want to evaluate the profitability of customers A and B. Enter negative numbers with a minus sign, i.e., a loss of $200 should be entered as 200, not as (200) or (\$200). b) One of the customers is unprofitable. What can you do about this customer? (select all that apply) limit the number of free customer-support calls "fire" the customer you cannot do anything - regardless of what you do, about 4050% of your customers will be unprofitable. That is just the cost of doing business. increase the interest rate