Which of the Following Statistics Is a Median

Which of the following statistics is a median?

A) Seventy percent of the Earth's surface is covered by ocean.
B) Half of the people on Earth are younger than 26.4 years, and half are older.
C) Earth orbits the Sun about once every 365.25 days.
D) Eighty-eight percent of the Earth's population lives north of the equator, the rest to the south.
E) The Earth has only one moon.