Who built the Qutub Minar?
A.Qutub ud din Aibak
B.Iltutmish
C.Muhammad Bin Tughluq
D.Muhammad Ghori

Hint: Qutub Minar is a world-famous and renowned UNESCO heritage, that was built as a victory tower and minaret. It's the tallest minaret in the world that has been built with just rocks.

Complete Step by Step answer: The Qutb Minar is the tallest minaret built of rocks in India. It was built as a victory tower by the ruler of the Delhi Sultanate. The foundation for this minaret was laid in the year 1199 A.D. It was first started by Qutb ud din Aibak, who was known to be the first-ever ruler of the Delhi Sultanate, that was an Islamic empire in Delhi.
Option A. Qutb ud din Aibak was the first ruler of the Delhi Sultanate and was the same ruler who built the Qutub Minar in Delhi.
Option B. Iltutmish was the founder of the Delhi Sultanate and was the first Muslim sovereign that ruled India.
Option C. Muhammad Bin Tughluq was known to be the founder of the Tughluq dynasty and was the Sultan of Delhi for a very long period.
Option D. Muhammad Ghori was the sole ruler and Sultan of Delhi for a long time, after which he got assassinated. After his assassination, Qutub ud din Aibak took over Delhi, starting the legacy of the Delhi Sultanate.
The correct answer to this question is option A - Qutb ud din Aibak.

 Note: The Qutub Minar is located in New Delhi. It was built by the first ruler of the Delhi Sultanate in Delhi. He is known to have become the first ruler after the assassination of Mohammed Ghori.