So, what happened was that those operas had a lot of commercials during the shows (for soup and detergent) directed at housewives that were thought to do the laundry during the show. The best answer is then this one:
<span> because they were targeted at housewives who did household chores</span>
History is my strong suite tbh. I would say answer choice C for this question
Alfred Marshall is credited with first using cost benefit analysis
There were<span> about 30 legions in the </span>Roman army<span>. Each legion had between 4,000 and 6,000 </span>soldiers<span>, </span>called<span> legionaries. Each legion had ten cohorts. Each cohort was made up of six troops of about 80 legionaries, </span>called<span> centuries.</span>
THE MAKING OF A NATION – a program in Special English on the Voice of America.
The 1920s are remembered today as a quiet period in American foreign policy. The nation was at peace. The Republican presidents in the White House generally were more interested in economic growth at home than in relations with foreign countries.
But the world had changed. The United States had become a world power. It was tied to other countries by trade, politics, and joint interests. And America had gained new economic strength.
Before World War One, foreigners invested more money in the United States than Americans invested in other countries -- about three thousand million dollars more. The war changed this. By 1919, Americans had almost three thousand million dollars more invested in other countries than foreign citizens had invested in the United States.
American foreign investments continued to increase greatly during the 1920s.
Increased foreign investment was not the only sign of growing American economic power. By the end of World War One, the United States produced more goods and services than any other nation, both in total and per person.
