Which of the following choices contains only factors that cause the supply curve to shift to the right? A)a fall in production costs, a rise in technology, an increase in taxes on output B)a rise in technology, a fall in the costs of production, a fall in taxes on output C)a fall in tastes and preferences for the product, economic growth, a rise in technology D)a decrease in taxes on production, a fall in subsidies on production, a rise in costs of production.

1. Which of the following defines Proof-of-Stake the most?
1.A consensus mechanism to validate transactions and create new blocks that works by selecting
validators in proportion to their quantity of holdings in the associated cryptocurrency.
2.Programs stored on a blockchain that run when predetermined conditions are met and are
typically used to automate the execution of a contract.
3.A consensus mechanism that requires members of a network to solve an arbitrary mathematical
puzzle in order to create a new group of trustless transactions (blocks) on the distributed ledger or
blockchain.
4.The ability for a blockchain ledger to remain a permanent, indelible, and unalterable history of
transactions.