The correct answer would be D- conquest of Asia minor by Seljuk Turks<span />
Elaborate drainage system
The harappan civilization is also known as the Indus river valley civilization. known as the earliest producers of cotton, the city featured an elaborate drainage system, which could have been necessitated by prosperity and effort to control the outbreak of river-line diseases.
I have no idea, so you should consult with your teacher, or the person who assigned this to you.
February 6th, 1895- August 16th, 1948
The biggest one was Operation Overlord (D Day)
