I believe that its swimming since it's in action.
The correct option is: <em>the reader could set his or her own pace and reread parts for clarity.</em>
When we read a text, we are able to do it in <em>our own pace</em>, <em>managing our time</em>, and <em>reading again</em> the parts we could not understand the first time.
On the other hand, <em>listening to audios</em> (or watching videos) can easily <em>affect our emotional perception</em> about a particular theme.
The sentence which has the phrase, "A high-pitched screeched", as the subject of a sentence is: D. Suddenly, a high pitched screech , the crow's call, pierced the air. Hope that helps.
He was wearing an expensive watch