Which country did not fall in the top 16 on a measure called the "World Giving Index" between the years 2009 and 2013?

During __________, children use their current schemes to interpret the external world, whereas in __________, children create new schemes or adjust old ones after noticing that their current ways of thinking do not capture the environment completely.

Fill in the blank(s) with the appropriate word(s).

By professional training, Freud was a

a. sociologist b. philosopher c. physician d. psychologist