The correct answer is B. Surgeon
He was a medical student and even worked at a hospital for a while at the beginning of his career.
The answer is A. She is making a claim that is still arguable but a stated fact.
About 90% of all stars are in the main sequence including our very own sun. They are the stars that are going through nuclear fusion, turning hydrogen atoms into helium.
Less. Most fruitful and best are both superlative, and hyper is just positive.
