Late senator strom thurmond of south carolina once stood in front of congress speaking for 24 hours and 18 minutes performing a a. cloture. b. pro tempore. c. filibuster. d. bill schedule.

The correct answer is C. Late Senator Strom Thurmond of South Carolina once stood in front of Congress speaking for 24 hours and 18 minutes performing a filibuster.

Explanation:

Filibuster is a specific technique of parliamentary obstructionism, which is intended to delay or entirely block the approval of a law or legislative act thanks to a long-term speech. It is effective in parliamentary systems in which the representatives don't have a time limit to intervene and has had historical significance in some moments of the parliamentary life of some countries. In this context, Strom Thurmond holds the record of the longest speech in the history of the United States Congress with 24 hours and 18 minutes duration, without interruptions.

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