Correctly identify all that happened with the rebuilding japan after wwii. question 2 options: a. japan transitioned to an agricultural economy after the war. b. the u. s. forced japan to pay back war reparations as a result of pearl harbor which has caused economic problems for japan. c. the u. s. japan rebuild economically and socially after world war ii and has maintained a peaceful relationship. d. japan adopted a new constitution and democratic government. e. the u. s. divided japan along the 17th parallel line in order to occupy both nations and prevent the spread of communism.

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.