✔ Correct Answer: C. Before leaving, please turn off the lights.
The correct answer to the question “In which sentence is the comma correctly placed?The book is on the table, and under the chair. I bought apple organes, and bananas. Before leaving, please turn off the lights.” is Before leaving, please turn off the lights.. This question belongs to Grammar Concepts & Terms in English. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.