The graph of the function f(x)= x²-3 is translated. The new function rule is f(x)= x²-1.

Which statement is true?

a. Every point on the graph is shifted down 1 unit.

b. Every point on the graph is shifted left 1 unit.

c. Every point on the graph is shifted right 2 units.

d. Every point on the graph is shifted up 2 units.