Describe how the transformed function below is obtained from its parent function.

y=|x-1|
a. the parent function y = |x| is stretched vertically by a factor of _1.
b. the parent function y = |x| is shifted 1 unit down.
c. the parent function y = |x| is shifted 1 unit to the left.
d. the parent function y = |x| is shifted 1 unit to the right.