Question

After she gave the lecture on molecular geometry, Dr. Jones realized that she would have to expound on the subject at greater length because the students looked confused and gave blank stares when she asked if there were any questions.

Answer 1

- To explain in detail.

Step-by-step explanation:

As per the context of the given description, the word 'expound' implies the meaning 'to explain in detail'. The word expound gives the meaning 'to propose 'a description or explanation at a great length' which goes appropriately as per the context of the statement and implies that 'Dr. Jones realized that she would have to 'explain the subject in a great detail'(expound) ' in order to provide a wider clarity and understanding to the students so that they can put up questions that would symbolize their effective understanding.