$1.$ Which of the following statements regarding the $250,000$ visitor forecast is accurate? $2.$ What are the total costs associated with the Gitre proposal option if the museum has $150,000$ visitors? $3.$ What is the attendance level at which Spinnaker Museum of Sailing is indifferent? $4.$ Assuming that the Spinnaker Museum of Sailing has $250,000$ visitors, what is the fee at which the museum would be indifferent the two options $?5.$ Assuming that the museum has $300,000$ visitors, which of the following statements is accurate?