please help!!! ill give brainliest!!!!

Around 1200 CE, what is the early civilization in Cambodia built the Angkor Wat Temple?
A) Han Chinese
B) Khmer <=because the second great khmer empire to arise, after the fall of Funan, was that of Angkor: This ancient Cambodian empire held power from the 9th to the 15th century. The city of Angkor was located in the modern Cambodian province of Siem Reap, which is in the Northwest of the country
C) Sumatran
D) Thai