During Burning of candle, which of the following change(s) takes place?

Both physical and chemical changes

The correct answer is option 3. Both physical and chemical changes.

The burning of the candle is both physical and chemical change.

Burning of the candle melts the wax and hence physical state of the wax has changed from solid to liquid.

Again, the wax combines with the atmospheric oxygen and changes to carbon dioxide, heat, and light.

Thus, both the changes are accompanied by the burning of the candle.