psychologists investigate the influence of multiple factors on how people change physically, mentally, and socially at every stage of life.

Developmental is the correct answer.

Explanation:

Developmental psychologists focus on the changes that occur in human growth and development at every stage of human life including social, physical, personality, cognitive, emotional and perceptual.Developmental psychologists investigate how the people grow, develop and learn during their every stage of life.Developmental psychologists also concentrate on age-related behavior, emotional development, and unusual developmental change.

Hello! i believe that it is okay, but you should limit on how much you go in a jacuzzi, hot tub, sauna etc. the rise in temperature may effect the development of you unborn baby and could cause some birth defects most likely in the first 3 months or 12 weeks of pregnancy. the recommended amount of time to be in a jacuzzi while pregnant would be 10  minutes or less.i hope this !