Which of these books is / are works by Amir Khusrau ?1. Qiran-u-Sadain2. Tahqiq-i-Hind3. Miftah-ul-Futuh4. Nur-i-SipiharChoose the correct option from the codes given below:

• A. Only 1, 2 & 3
• B. Only 1, 3 & 4
• C. Only 1 & 3
• D. 1, 2, 3 & 4