I think it would be A) Emotions and ethics
The answer is <em>C: twisting the handlebars quickly and wiggling the front wheel</em>.
1. Twisting the handlebars quickly: "There is a third movement of the handle bars --a quick twist in the direction the machine is leaning if about to fall."
2. Wiggling the front wheel: [prevent the fall by throwing the balance the other way] " a similar result is accomplished by wiggling the front wheel...a continuous wiggle --changing the balance...-- is necessary to keep it upright."
In ancient Greece, Ptolemy asserted that the earth was at the center of the universe. The sun, moon, planets, and stars all revolved around it.
This is another compound complex sentence due to the complexity it has. It contains one dependent clause and two independent clauses.
So the answer is letter D compound complex.