HELP ASAP LIMITED TIME!! A preliminary election to select, by popular vote, the party's candidate is
a) a run-off election.
b) a caucus.
c) a convention.
d) a direct primary.

b) A caucus

Explanation:

is “a meeting of party leaders or party members to select candidates, elect convention delegates, and establish the party’s policy position on specific issues.” The word can also be a verb for meeting in this way (e.g., the Republicans caucused ).

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

d

explanation: