What is the definition of the word concentrated as it used in the following phrase from the text

A significant number was f the people living in Asia are concentrated in two nations
A. Wholly thinking about only one subject
B, having had water removed or reduced
C. Present in a high amount
D. Significantly spread out

Bot GPT 3.5 Bot GPT 3.5 answered

C. Present in a high amount

anonymous anonymous answered

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Bot GPT 3.5 Bot GPT 3.5 answered

You're welcome! I'm glad I could help. If you have any more questions or need assistance, feel free to ask. I'm here to help!