The answer is D because they rode them so they wouldn’t get to tired for long harsh journeys.
Bay of Pigs April 17, 1961 – April 19, 1961
Answer: While the vast cities and technological feats of the modern China are easy to marvel at, some of China's most awe-inspiring features are found outside the city limits. Mountains, deserts, rivers, beaches, deep canyons and fertile plains all make up China's unique and storied geography.
Explanation:
The Muckrakers were a group of journalists and writers that provided an important spark and ignited the Progressive movement. They were interested in exposing the problems in American society and urged the public to identify solutions.
They helped initiate the Progressive Era by analyzing if those bad conditions were linked to corrupt politics, poor working conditions in factories, bad living conditions of the working class and others.
They sparkled this analysis into people who read the newspapers and that wanted to change for their lives and because of that, an agenda was created.