10GBase-EW connection could transmit using a repeater at which maximum distance?

10GBase-EW connection could transmit using a repeater at which
maximum distance?

A.
40,000 meters (131,233 feet)

B.
10,000 meters (32,808 feet)

C.
20,000 meters (65,616 feet)

D.
80,000 meters (262,467 feet)