What is the term that means the knowledge that quantity is unrelated to the arrangement and physical appearance of objects?

While camping, Alicia and Seth saw a bright light in the distance on a very dark night

After watching it for a few moments, it suddenly began to move. If they looked away and then looked back, it appeared to hover in one spot, then start moving again. They told their friends they had seen a UFO. Really, they had been fooled by _____ a) stroboscopic motion. b) the motion parallax. c) the autokinetic illusion. d) the principle of continuity.

The word puberty is derived from the Latin word pubescere, which means to "grow ____

hairy" || taller" || independent" || older" || || ||