g(x) = (x-1)² + 2 is a transformation of f(x) = x².
Which is the description of the transformation?
a. on 1 unit to the left and 2 units down
b. on 2 units to the right and 1 unit down
c. on 2 units to the left and 1 unit down
d. on 1 unit to the right and 2 units up