Those who do not learn from the past are destined to repeat it.
D. the spread of Islam into Africa.
There’s a full paragraph abt this on google look this up and it’s there all of it
Organized labor is an association that engages in collective bargaining to improve workers' economic status and working conditions. In most countries, the union formation process is regulated by a government agency, such as the National Labor Relations Board (NLRB) in the United States