The best and most correct answer among the choices provided by your question is the third choice or letter C "<span>An adviser of Justinian."</span>
Theodora was empress of the Byzantine Empire and the wife of Emperor Justinian I. She was one of the most influential and powerful of the Byzantine empresses. Some sources mention her as empress regnant with Justinian I as her co-regent.
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Neolithic humans living in mountain regions should get adapted to use terracing to grow crops.
<u>Explanation:</u>
The Neolithic culture had been in existence for about 12,000 years ago. It was said to be the final period of Stone Age. Neolithic culture is believed to be followed, when the farming started its development in Eastern part of the world.
Neolithic people used mud-brick to construct their houses. Many changes were introduced in agriculture during Neolithic period and new technologies were invented for farming. The Neolithic people changed their lifestyle from hunting and gathering to agriculture.
Neolithic humans living in mountain regions used terrace to grow crops.
Martin Luther King Jr. was the most effective leader in African American civil rights.
What is African American civil rights?
African American activists organized the civil rights movements against inequality, lynching, and other acts of violence against black people. Their tireless efforts to fight back against systematic oppression lead to jail time, beatings, and sometimes even death. The aim of civil rights is to end segregation in public places as well as ban employment discrimination on the basis of color, religion, etc.
Martin Luther King Jr. was a nonviolent protest leader who became famous for his iconic speech "I Have a Dream." He was imprisoned nearly 
times for civil disobedience. He also won the Nobel Peace Prize at the age of 
.
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