I'd say probably C
Hope this helps!
Answer:
The 3rd Option
Explanation:
Simple for this question, C: an investigation because it uses only observations.
Answer:
Possible Answer -
Responses may vary but should include some or all of the following information: Studying psychology can help one gain critical thinking skills, problem solving skills, and interpersonal skills.
Explanation:
Hope this helps (:
Memory loss is not part of physical change by aging