What happens if we run this command in MySQL$?$

a$.)$

The price is updated to the current value of price plus $1.$ The original$\_$price is updated to the newly calculated price value.

b$.)$

The statement creates an exception, as you can't reference the same column twice.

c$.)$

The original$\_$price is set to the current value of price. Then, the price is deducted by $1.$

d$.)$

The price is updated to the current value of price plus $1.$ The original$\_$price is updated to the original price value.