Which of these is the oldest civilization of Pakistan?

Which of these is the oldest civilization of Pakistan?

Which of these is the oldest civilization of Pakistan?

• Mehr Garh
• Indus Valley
• Gandhara
• None

ANSWER 

       (1)

• Mehr Garh

source https://sportsnewsstar.blogspot.com/2021/12/which-of-these-is-oldest-civilization.html