What term is used to describe strengthening the muscle without increasing its size?

a.) muscle terse

b.) muscle tone

c.) muscle mass

d.) muscle ruse

Which action is characterized of mental illness 1.brushing teeth every hour because ones mouth feels dirty ? 2. forgetting to eat breakfast on a busy day? 3.crying three days over a relationship breakup? 4.feeling embarrassed about going to school after failing in front of friends?