The answer is A. Ethnic groups
Answer:
C. Labor unions deteriorated as employers fired striking workers and replaced them.
Explanation:
The Professional Air Traffic Controllers Organization(PATCO )was a United States trade union that was responsible for the welfare of aviation workers.
An illegal strike in August 3, 1981 occurred, seeking better working conditions such as reduced 32-hour work week and a $10,000 pay increase.
President Reagan fired all the aviation staffs and new set of people were trained and hired.
Answer:
D
Explanation:
since selling the letters of indulgence is common in the period, selling position in the church happened a lot
One way that Islam spread in Northern Africa was b. The Islamic empire established a center of learning in the territories.
<h3>How did Islam spread in North Africa?</h3>
Apart from trade with Arab Muslims, North Africans picked up Islam thanks to the knowledge that they gained from local centers of learning.
These learning centers were set up to ensure that people could learn and appreciate the Islamic creed.
Find out more on Islamic centers of learning at brainly.com/question/15070909.
#SPJ1
