Question Saba conducts regular tours of his favorite city in the world, Paris. He arranges a number of cultural events for students. Some of the events (and their prices) he proposes to the students include: Eiffel Tower visit, $40 per student, E Paris Sewer spelunking, $20 per student, S Half day passes to the Louvre, $60 per student, L Bon Beret tour, $50 per student, B Let = 1 if event I is selected, 0 otherwise, for I = E, S, L, B. Saba collects an $100 from each student to pay the events' prices and limit his tour group to ten lucky individuals. a. Write the appropriate contraint(s) for the following conditions: If the Half day at the Louvre or the Bon Beret tour is selected, then the Eiffel Tower visit cannot be selected because of time conflict. b. Write the appropriate constraint(s) for the following condition: If students taking the Paris Sewer tour had to wear the special sanitary beret available only from the Bon Beret tour. c. Write the appropriate contraint(s) for the following condition: This tour group has three days remaining in Paris and can do up to three cultural events. Saba applies for university travel funds and supplements the students' accounts with an extra $10 each