What does the Language Arts section assess regarding reading comprehension?

The correct choice focuses on the ability to understand main ideas and supporting details, which is a fundamental aspect of reading comprehension. This skill allows individuals to identify the central themes of a text and recognize the supporting information that adds depth and context. Mastery of this ability is essential for effective reading, as it enables readers to grasp not just what is being stated but also the implications and nuances behind the text.

While summarizing, recalling facts, and knowledge of literary history can play roles in broader reading skills, they are more specialized and do not encompass the full scope of comprehension that includes evaluating and interpreting the main ideas and supporting details. Hence, understanding main ideas and supporting details is key to navigating and analyzing various texts, making it the most critical aspect assessed in reading comprehension.