Rereading key passages primarily aids in what aspect of reading comprehension?

Rereading key passages significantly enhances depth of analysis in reading comprehension. When a reader revisits important sections of a text, they are able to focus more intently on the nuances, themes, and intricate details that may have been overlooked during the initial reading. This process allows for a more thorough understanding of the material, encouraging the reader to reflect on the implications of the text and make connections with prior knowledge or other texts. As a result, rereading not only deepens comprehension but also fosters critical thinking and encourages a more engaged interaction with the content.

In contrast, the other options highlight different reading skills that are not primarily enhanced through the act of rereading. For instance, speed reading involves quickening the pace of reading and may not lend itself well to detailed analysis. Fluency pertains to the ability to read smoothly and efficiently, which can be developed through practice but is not the focus of rereading specific passages. Lastly, skimming for main ideas emphasizes the identification of overarching themes without the depth that rereading encourages, hence it does not lead to a more profound understanding of the text.