The correct options are
C <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
Altamash
D <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
Qutubuddin Aibak
The construction of Qutub Minar began during the reign of Qutubuddin Aibak in the 12th century, and was completed by Altamash in the 13th century. It is tallest minaret made of bricks, standing at 73 metres.