What is an example of a liquid medium?

Choose the correct term for the following definition: forming all the sounds of words so that an actor can be understood

a. projection b. articulation c. International Phonetic Alphabet d. pitch

In the world of jazz, improvisation is the art of

a. recognizing chord patterns and progressions. b. composing and performing at the same time. c. not responding to sound cues from other band members. d. playing from memory written music that has been rehearsed.