Which of the following is an example of a concentric contraction?

How can a person  best  reduce the risk of injuries on the road?  

Lori didn't want to learn the piano and thought her mom was wasting money on lessons. lori didn't like practicing and saw no future purpose for learning the piano since she wasn't going to grow up to be a pianist. what is lori expressing?

Sean is getting frustrated by his math homework. rebecca sean with his math homework. in a neutral tone, rebecca explains to sean how to solve the equation he was having difficulty with. sean is impressed by rebecca’s mathematical mastery. later, he describes her as warm and friendly. based on the information above and sean’s question, what might a psychologist conclude about his social perception? a. sean’s opinion about rebecca’s friendliness was part of a conscious desire to overlook her cold behavior. b. sean’s opinion about rebecca’s friendliness was influenced by his own positive mood and feelings. c. sean’s opinion about rebecca’s friendliness was based on interactions with other math students. d. sean’s opinion about rebecca’s friendliness was affected by his positive assessment of her math skills.