Answer:
B because they studied how self-compassionate to themselves
Explanation:
A doesn't make any sense because maybe scientists are hard on themselves and it's all about mentality. Self-compassion doesn't make you smart, it makes you mentally and emotionally esteemed and has nothing to do with success and failure.
Answer: In the air sacs
Explanation: Air sacs has a million tiny holes that is were oxygen transfers. Inside the air sacs oxygen moves across paper thin walls to tiny blood vessels called capillaries into your blood
The oxygen enters the bloodstream from the alveoli.
D because if you have already tried one treatment and it caused a infection you would need to change it
When two tectonic plates push into each other they meet, the place where they meet is called PLATE BOUNDARIES.