In 1946,Eleanor Roosevelt served as a chair of the United Nation Commission on Human Rights
The correct answer is "less hopeful".
<span>This is because all the characters in the poem sing as they are doing their work, thus creating the identity of a happy America where the workers enjoy and sing. </span>
<span>If they weren't singing, they would be presented as people with no hope who are doomed to work day in day out for the elite. </span>
<span>This is not something that Whitman supported as he wanted to present America as a joyous place.</span>
I think it’s A.The fan blades cannot keep up with the heat of the engines.