On average, how many words make up the vocabulary of a four-year-old? ,000-2,000 2,000-3,000 3,000-5,000 ,000-6,000

Which of these statements describes clinical depression? a. a milder form of depression that usually follows a traumatic event b. a medical condition that may occur due to a chemical imbalance in the brain c. alternate feelings of extreme happiness and extreme sadness