Shiny white dental insurance costs $258 per year. Approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. If you consider Shiny White's income and expenses, what is the expected value of each insured customer?
a. $258
b. $145.33
c. $36.67
d. $76
e. $112.67