It differs depending on your age. You can find it by subtracting your age with 220. Since I am 16, I would subtract 220-16 to get 204. Hope I could help.
Yes, the answer is B. When you put yourself in someone else's shoes, it's a metaphorical statement. You aren't replacing a person, changing roles with them, of being jealous of them. However, you are looking at something from the way they see it.
