Concept:The national secretariat is the administrative headquarters of a political party, managed by its top party officials.
Explanation:The national chairman oversees the overall administration and discipline of the party.
The general secretary handles records, correspondence, and day-to-day secretariat operations.
Together, they coordinate the management of the national secretariat.
A presidential candidate mainly leads election campaigns, not the secretariat.
Funding members support finances but do not manage daily party affairs.
The national executive and youth organizer have important roles, but they are not in charge of the secretariat.
Answer:C. national chairman and general secretary