Answer:
The fact that I can finally stand true in my dream and make Art simply because it's something I love to do - AND know it's legitimate way of creating and living - is a very powerful and self-affirming way to live. I feel good in my own skin when I paint and THAT's why I keep doing it.
Answer:
A: A new blood test makes it easier-and safer-to detect concussions.
Explanation:
The main idea of the passage is A new blood test makes it easier—and safer—to detect concussions.
Notice the phrases question the use of and proposed an alternative way. They suggest that the main idea involves a possible solution to a problem. Here, the main idea is that the problem of detecting concussions without radiation could be solved by a simple blood test.