Excerpt from improve the zoo! to the editors: what would you do if you had an extra $5 million to spend? that's what the city council has found in its budget, and it's turning into a big problem because each branch of our city services wants to have it for its own. last week, you recommended spending the budget surplus on street repair. one reader suggested expanding the library. i have a better suggestion: let's improve the zoo! central city zoo is small and outdated. the animals live in cramped, barred cages built in 1946. any visitor can see the big cats pacing unhappily back and forth, day after day, and the apes prowling hopelessly in search of something interesting to climb. these animals have been entrusted to our care. if they could speak, they would plead for a better life. it is wrong not to give them one. zoos have made major advances in past decades, but central city zoo has not kept up. now it has the chance to do so. imagine a new avian center, with tropical birds flying freely inside an airy, spacious dome, instead of the smelly little cages of the old birdhouse! imagine an underwater glass gallery where we will watch seals swim! which sentence from the passage is the author's thesis statement? a) imagine a new avian center, with tropical birds flying freely inside an airy, spacious dome, instead of the smelly little cages of the old birdhouse! b) central city zoo is small and outdated. c) i have a better suggestion: let's improve the zoo! d) that's what the city council has found in its budget, and it's turning into a big problem because each branch of our city services wants to have it for its own. i think it is c