In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Direct/Indirect speech.

The teacher said, 'The Earth revolves around the sun.'

• The teacher said that the Earth is being revolving around the sun.

• The teacher said that the Earth revolves around the sun.

• The teacher said that the Earth revolved around the sun.

• The teacher said that the Earth had been revolving around the sun.