In the last months of prenatal life, the lungs begin to expand and contract and the valves of the heart undergo final maturation

During adolescence, which of the following reach(es) adult levels??

a. ?working memory and reaction time b. ?problem solving abilities c. ?ability to use executive processes d. ?analytical thinking

For the past six months, Nicole has been taking a mild amphetamine to help her stay awake during double shifts at work. She has now stopped working the extras shifts, but she finds that if she doesn't continue to take the amphetamine she starts sweating and she develops bad tremors. This would suggest that Nicole:

a. has developed a drug dependency on amphetamines b. has developed a drug tolerance for amphetamines c. is experiencing the effects of drug intolerance d. has become habituated to amphetamines