Continuous Variations is a variations style:
a. where a pause occurs between variations that reveals a theme being played again and again with no alteration
b. wherein it is revealed that this is the song that never ends
c. when musicians keep changing positions in their chairs while playing the music
d. where each variation segues/goes directly into the next variation, unfolding as a single, extended movement

D. where each variation segues/goes directly into the next variation, unfolding as a single, extended movement Explanation: Variation is the little difference that exist between individuals.  Continuous variation is a term used in genetics to explain the combination of different genes in a living thing forming as one single entity.  Examples of continuous variation is height, weight, shoe size, etc.  Basically, continuous variation has to do with a range of data from one point or the other which is different from discontinuous variation which has to do with distinct features such as eye color, hair texture or fingerprint.

Idon't inderstandhthe question

Clay is a good medium to sculpt because its shape can be changed easily