Which of the following statements about temple architecture are true?

I. The freestanding (mortar & stone) temples are supposed to have originated in the Gupta period.

II. Ladkhan, which is one of the earliest temple belongs to Chalukya of Badami.

III. In Khajuraho temples, all the compartments of the temple are connected internally and externally.

IV. Kailashnath temple at Kanchi is the earliest freestanding temple of Dravid style.

Choose the correct answer: