How did a dynasty lose or gain the mandate of heaven?
a. it was believed that ancestors could talk to the gods.
b. it was believed that ancestors had total control of the weather.
c. it was believed that ancestors would cause destruction if not honored.
d. it was believed that ancestors brought good luck to farms.

I'm sorry my answer was for a different question.  :(  I am so so sorry.  

For this question tho, I would guess the answer to be C.

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.