"Right regarding education" says that every citizen has rights to receive basic education in their mother tongue. pls help me.

Education in a minority’s mother tongue, combined with quality teaching of the official language, is more cost-effective in the long term; reduces dropout rates; leads to noticeably better academic results, particularly for girls; improves levels of literacy and fluency in both the mother tongue and the official or majority language; and leads to greater family and community involvement

Explanation:

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

answer; the edward snowden leaks of nsa classified material;