"<span>Death Valley, the lowest point in the United States and part of the Mojave Desert, is located in Southern California" is the proper choice. "Southern" in Southern California is capitalized because it's named a distinct region. </span>
The cruel approach of the scam surprises even Huck<span>, and he comments that "it was enough to make a body </span>ashamed of the human race<span>." The events of Chapter 24 reveal that the duke and the king have taken complete control of the raft and its travelers.</span>
It shows that older people often ignore or minimize children's feelings
B.) The word "But" should not be capitalized.
Note that the rule with capitalization is that proper nouns and words beginning sentences should be capitalized. When we look at the original sentence, it reads as follows:
<em>The tracking of online activity is not just a privacy issue, </em><em>but</em><em> an economic and political minefield.
</em>
We can see that the word “but” is not the beginning of a sentence. In addition, “but” is not a proper noun. In this particular sentence, “but” is part of the correlative conjunction pair “not/but.” Just because the word “but” is beginning the second part of the quotation and appears immediately after quotation marks, it’s important not to get confused and think that it is beginning a new sentence.
Therefore, it should not be capitalized.