Question 5 (2 points) What is the best example of a marginal change? College tuition rose by 5% last year. O Rory graduates from university and takes a job. His income increases from $10,000 per year to $50,000 per year. O Yao gets a big promotion at work. He also gets a raise from $50,000 per year to $80,000 per year. O A drought hits Alberta and the price of corn increases from $4.00 per bushel to $6.00 per bushel.Question 6 (2 points) In a market economy, how do prices direct economic activity? O by influencing the actions of buyers and sellers O by allocating goods and services produced in the most equitable way by eliminating the need for government intervention O by reducing scarcity of the goods and services produced