Answer:
The correct answer would be - plain drinking water would be safe and noncaloric.
Step-by-step explanation:
The recommended source of the fluid for healthy U. S. man is water due to it is safe as their is no additional preservatives or substances like caffeine that is not safe for long term and tea coffee are not enough to provide proper amount of fluid.
Fresh juice is a good source of the fluid however it contains sugar content which is high in calories that can cause or result in obesity or high sugar level in blood.
Thus, the correct answer is - plain drinking water would be safe and non caloric.