The correct answer is A.
It's is short for it is.
Use its to show possession. For example in sentence B, it's should be its because the dog is the 'owner' of the tail.
Answer: Its either 1 or 2 I would say 1
Explanation:
Explanation:
B. Napoleon's invasion of Russia in 1812 was a complete disaster,
the bitter cold of winter wiping out hundreds of thousands of
troops, all for nothing.
The last choice, "Teens who sleep less than 5 hours a night suffer from more immune related illnesses according to a study released in 2015 by the American Journal of Medicine." It gives a source to where the information had been gathered.