Where and how was the concept of checks and balances first used? A. in medicine, to create drug formulas
B. in industry, to structure businesses
C. in law, to create legal contracts
D. in diplomacy, to to assist in trade negotiations

B. In industry, to structure business

Explanation:

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.

they spoke the dravidian language. hope this , correct me if im wrong