Answer:
That'll happen to me every once in a while. What you have to do is reload the page. If it still doesn't let you answer, try exiting out the page, and getting back on it with a new tab.
Hope this helps!!
1. The best option is C) pick an object at random, and keep track of how many copies of an object are left in a game.
2. The best option is D) clockwise and counterclockwise.
3. your 3rd question does not seem to be clear to me.
Answer:
Permissioned
Explanation:
In this scenario, specified group of banks got together and joined forces by agreeing to use a blockchain for wholesale settlement of all interbank transfers. Thus, this is most likely an example of a permissioned blockchain.
Trains, Cars, Boats, Airplanes
