What is the name of a phenomenon in which people perceive motion when in fact there is none?

Which dream theory states that dreams are simply the brain's way of explaining random neural activity while sleeping?

a) Freudian dream theory b) dreams for survival theory c) activation-synthesis hypothesis d) Hall's dreams as reflections of everyday life

Tanner's (1978) growth curve is an example of

A. readiness B. catch-up C. severe deprivation D. critical period