If I ask where have you been what is the answer will be?

if I asked where have you been?
which one is correct answer? between iwent to drink water. and I have been in the kitchen for 5 minute to drink water.
thank you for your answer

Q: "Where have you been?"
A: "I was getting a drink of water." or "I was in the kitchen, getting a drink of water." or "I was in the kitchen." or "I went to get a drink." or "I went to the kitchen to get a drink." or "I was thirsty, so I went to get a drink." or "I was thirsty, so I went to the kitchen to get a drink."