Clipper Ships and the Pony Express Had in Common

Clipper ships and the Pony Express had in common

A) the use of the most advanced technology available in the transportation and communication realms, respectively.
B) providing initially unparalleled speedy, efficient service to businesses that outpaced their respective competitors.
C) a brief existence as the preferred modes of transportation and communication, respectively, for businesses.
D) providing their respective services at a very low cost for those businesses and individuals.
E) support from the state governments and the federal government.