An Elliptical Whispering Gallery Has a Major Axis of 28

Multiple Choice

An elliptical whispering gallery has a major axis of 28 feet an a minor axis of 22 feet. Where should two speakers position themselves so as to most easily hear each other?

A) 5.34 feet in from the ends of the minor axis
B) 8.66 feet in from the ends of the minor axis
C) 5.34 feet in from the ends of the major axis
D) 8.66 feet in from the ends of the major axis