The correct answer is A. It means to make an inference about what happened
Explanation:
"To read between the lines" is a figurative expression that refers to understanding the deep meaning of a text while reading. This often involves going beyond what is explicitly said in a text and find implicit meanings or messages through inferences. This means you use the details of a text and connect them to understand what is really happening in a situation or what is the real meaning. Moreover, his technique is important for readers because it helps them to have a deep understanding of a text. According to this to read between lines "means to make an inference about what happened".
The Latin root word grad and its variant gress both mean “step.” These roots are the word origin of many English vocabulary words, including graduate, gradual, aggressive, and egress.