The question "What is it?" evokes which kind of response?

The Mahabarata is a Buddhist text

Indicate whether the statement is true or false

"Scat singing," which Louis Armstrong introduced into jazz, is ________.

A. singing with a gravel-throated sound B. not being able to sing on pitch C. vocalization of a melodic line with nonsense syllables D. singing above the normal vocal range, or falsetto