Qual é a Área de conhecimento que se ocupa em pesquisar os instrumentos musicais na tentativa de descobrir suas origens históricas e culturais, respeitando as diferentes culturas ?

Yes and no because if you know the vocabulary used you will understand it and go faster but you might not need it

That a hard question ill get back to u for it

The theme of social protest remained a consistent focus for jacob lawrence throughout his career. in the 1960s lawrence was inspired by news reports and photographs, including images of segregated lunch counter sit-ins and stories of the   freedom riders in the civil rights movement. from the 1970s onward, lawrence's work focused less explicitly on contemporary social issues.

Ibelieve the answer is  a.