Philosopher: The most moral actions provide the most benefits to the most people at the lowest costs without any regard for intentions. Which one of the following exhibits the most moral action, as described by the philosopher? ["Tyree quits smoking cigarettes, and as a result, he will live longer and save taxpayers' money.", "Isabella founds a non-profit organization that teaches sustainable farming on a small island in the Pacific Ocean, but the island's villages adopt a different farming practice", 'Leroy develops a vaccine for malaria, but the cure decimates the mosquito population, destroying the local ecosystem, and causing famine across an entire continent.', "Trevor starts a website that provides people with the best solutions for reforming his nation's corrupt government, but nobody ever reads it."]