Which of the following statements are not correct?1. Iltutmish's tomb is an indication of the mixing of the Hindu and Muslim traditions of architecture.2. First true arch was used in the tomb of Sultan Nasiruddin Mahmud.3. The horse shoe arch was used for the first time in the construction of Alai Darwaza.4. Architectural device known as double dome was not used in any building constructed during the Sultanate period.Select your answer from the codes given below:Codes:

Which of the following statements are not correct?1. Iltutmish's tomb

1.	Which of the following statements are not correct?1. Iltutmish's tomb is an indication of the mixing of the Hindu and Muslim traditions of architecture.2. First true arch was used in the tomb of Sultan Nasiruddin Mahmud.3. The horse shoe arch was used for the first time in the construction of Alai Darwaza.4. Architectural device known as double dome was not used in any building constructed during the Sultanate period.Select your answer from the codes given below:Codes:
A.	1, 3, 4
B.	2, 4
C.	1, 3
D.	2, 3, 4
Answer» C. 1, 3