If a language teacher has taught a topic in the class and no student asks questions in her class, then may be—

The correct option is "whatever was taught was beyond the comprehension of the students".

Explanation:
When a teacher completes a topic in class and no student asks any questions, it generally indicates a lack of understanding or engagement. For students to formulate relevant questions, they must first comprehend the basic concepts of the lesson. When the content delivered is completely beyond their current level of understanding or comprehension, students struggle to process the information, making it difficult for them to identify what they did or did not understand, resulting in complete silence and an absence of questions.