<span>The basis of American society has always been the individual and political rights and ideals of freedom and equality.</span>
The answer is D. It is restarting the thesis.
Well, you need to give us the choices before we can give an exact answer but normally you can evaluate the tone by thinking about the context and meaning.
some examples of strong disapproval might be: "She's such a horrible person" or "I really hate this lamp it's ugly" The bolded words show the strong disapproval.
But most likely you should be able to find it by evaluating tone.
For sure W because nobody at the time knew why people did these type of things