In this excerpt from <em>It</em> by Stephen King, the part in the elypsis (...) talks about how the character is experiencing these feelings as while he was doing cocaine. While he was at it, he started to find a similarity between the high he was feeling and the thrill of childhood, but not quite.
Therefore, your best answer is nostalgic.
The best answer is C. It's important to use updated information in your research, therefore why B and A are not the answer. As for D, information from the Internet can be trustworthy; it depends on which site you're using. For example, .gov is a good site to use.
<span>(C. Present perfect.)</span>
i think it's anything hope it helps