Let A be a set with nn elements. Let f be a function from P(A) to Z where f(x) equals the number of elements in x. Select all statements that are true. a. {Φ,0} ∈ f
b. The number of elements in the domain of f is 2^n
c. f is not one-to-one.
d. f is one-to one.
e. The image of f is the set (1,2,3,…., n}