In the following question , a sentence is given

Solution

Explanation: Extempore refers to a speech or performance done without preparation. Impromptu: Also refers to something done without preparation, but it is usually less formal than extempore. Rhetoric: The art of persuasive speaking or writing, often prepared in advance. Oration: A formal speech, usually pre-planned and delivered on a special occasion. Ad-lib: To speak or perform without preparation, often improvising, but it is commonly associated with casual or entertainment settings.