Which of the following regions was NOT a part of the Umayyad Caliphate at its peak?

Which of the following regions was NOT a part of the Umayyad Caliphate at its peak?

مندرجہ ذیل میں سے کون سا علاقہ اپنے عروج پر اموی خلافت کا حصہ نہیں تھا؟
Explanation

The Umayyad Caliphate controlled the Middle East, parts of India, much of North Africa, and Spain.

The region of Syria remained the Umayyads' main power base thereafter, and Damascus was their capital.