Acause of frustration about racism in the united states during the 1960s was that
segregation continued despite the passage of laws to eliminate it.
laws designed to eliminate segregation had not been passed.
segregation had ended but laws still needed to be passed.
the civil rights movement had made no major progress.

A cause of frustration about racism in the United States during the 1960s was that segregation continued despite the passage of laws to eliminate it.- first choice

segregation continued despite the passage of laws to eliminate it.

Explanation:

Racism in the United States has manifested itself mostly among Americans of Anglo-Saxon origin against people of African descent, Asians, Italians, Poles, Native Americans, Latin Americans, and other immigrants in general. It should be stressed that a religion, such as Islamic, nationality, language, customs or culture does not determine a race. This is denoted by calling racism Chinese, Israelis, Russians or Americans who are multiracial countries and regions, or continents such as Asia, which has a diversity of ethnicities. During this time, Jim Crow laws emerged which consisted of racial segregation in all public facilities. in the 1960s, laws were passed that prohibited segregation and imparted equal rights for all people, the problem is that racial conflicts continue until today.

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.

the answer would be c