Correct Answer: B
Explanation:
(B) A roadblock stops travel from taking place (at least along that particular path); an impediment is an obstacle that prevents progress from being made.
Detour: a route used when the direct or regular
route is closed to traffic
Impediment: [Now Rare] an impeding or being
impeded; obstruction
Filibuster: an adventurer who engages in
unauthorized warfare against a country
with which his own country is at peace;
specif., any of the 19th-cent. U.S.
adventurers who led armed expeditions
into Latin American countries;
Legislature: a body of persons given the
responsibility and power to make
laws for a country or state; specif.,
the lawmaking body of a State,
corresponding to the U.S.
Congress