Q: You are presented with the quiz "How long can people survive while dehydrated?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most people can survive only a few days without water" and "without an ample supply of water to drink, people become dehydrated". So, what's the best answer to the question?

Pick from: 1). A few days. 2). An hour. 3). the environment. 4). sweating. 5). Forever. 6). A few weeks. 7). dangerous. 8). Winter.
A:
1).