Question: Which city is more populated, Bengbu or Chenzhou?

Context paragraphs:
Yongxing County: Yongxing County () is a county in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Linwu County: Linwu County () is a county in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Jiahe County: Jiahe County () is a county in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Chenzhou: Chenzhou () is a city located in the south of Hunan province, People's Republic of China.  Its administrative area covers 19317 km2 , 9.2% of the provincial area, and its total population reached 4,559,600 in 2001, 26% of them living in urban areas, 74% of them live in rural areas.

Bengbu: Bengbu () is a mid-sized city in northern Anhui Province, China.  Its built-up ("or metro") area made of 4 urban districts has nearly one million residents, though the Prefecture-level city under its jurisdiction had 3,164,467 registered residents at the 2010 census.  Its name means "Oyster Wharf" in Chinese, echoing its former reputation as a freshwater pearl fishery.

Rucheng County: Rucheng County () is a county in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Chenzhou Beihu Airport: Chenzhou Beihu Airport () is an airport scheduled to be constructed to serve Chenzhou city in Hunan province, China.  Its proposed location in Tashui Village, Huatang Town, Beihu District was approved by the Civil Aviation Administration of China in January 2015.

Anren County: Anren County () is a county in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Guidong County: Guidong County () is a county in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Zixing: Zixing () is a county-level city in Hunan Province, China, it is under the administration of Chenzhou prefecture-level City.

Supporting paragraphs: Bengbu Chenzhou
Answer: Chenzhou