DIRECTIONS: On the basis of following diagram/picture answer the questions given below: One oscillation of a swinging pendulum occurs when the bob moves from X to Y and back to X again. Using a stopwatch, which would be the most accurate way to measure the time for one oscillation of the pendulum?

• A. Time 20 oscillations and multiply by 20.
• B. Time 20 oscillations and divide by 20.
• C. Time one oscillation.
• D. Time the motion from X to Y, and double it.