Do you know who Nancy Scott is
Explanation:
A witness would be someone that has experienced something at first hand, having saw something from a different perspective. An ally is someone who is acquainted with you, or someone you could trust. A witness cannot be an ally if you are against their side in some form or way. A witness can be an ally if it is your best friend or someone you trust to prove you innocent.
Basically, a witness is a neutral term that describes someone that saw something. While an ally refers to mutually acceptable.
Answer:
B. Galileo was an astronomer who discovered important facts about the solar system.
Explanation:
A summary is a shorter way of telling what happens in a story or article. It only tells the main events or details of the passage. This passage is about Galileo Galilei. The important details are that he was an astronomer and he discovered important facts about the solar system.
