Imagine that a customer calls for assistance during a vacation she is taking in New York City. She is currently at Battery Park and needs to arrive at Yankee Stadium by 4:00pm for the Yankees’ Friday night baseball game. She is planning to meet a friend at the metro stop on 161 E Street. Required:
At what time is the latest subway train she could take to make it to the stadium on time?

a. 3:02 p. m.
b. 2:50 p. m.
c. 3:12 p. m.
d. 3:22 p. m.