Answer:
B
Explanation: contains the most work and is makes more sense
Answer:
easiest ways to test your hydration is through bathroom frequency and urine color. Your urine should be light yellow and you should be emptying your bladder on average 5-8 times per day. Another way to determine hydration levels (especially after a run) is a sweat test.
The subordinate clause is "you must start researching now"
