Which of the following challenges did pioneers typically face on the santa fe trail in the mid-1800s? a. desert sand that slowed wagons to a crawl. b. harsh winter snows that trapped travelers. c. heavy rainstorms that washed away roads. d. high, rugged mountains that were hard to cross.

The answer to this question is D

Protecting and assisting  u.s. citizens  living or traveling abroad; assisting u.s.  businesses  in the international marketplace; coordinating and providing support for international activities of other u.s. agencies (local, state, or federal government), official visits overseas and at home, and other diplomatic efforts.keeping the public informed about u.s. foreign policy and relations with other countries and providing feedback from the public to administration officials.providing  automobile registration  for non-diplomatic staff vehicles and the vehicles of diplomats of foreign countries having  diplomatic immunity  in the united states