please answer this correctly
Reba is touring New York City with her family. They want to visit the Empire State Building, Central Park, and Times Square before their dinner reservations at 7:00 P.M. They want to spend 1 hour at the Empire State Building, 2 hours and 30 minutes in Central Park, and 1 hour in Times Square. What is the latest time Reba's family can start their tour in order to make it to dinner on time?
2:30pm
8:00pm
6:00pm
7:30pm