Let R be the set of real numbers and * be the binary operation defined on R as a * b = a + b - ab ∀ a, b ∈ R. Then, the identity element with respect to the binary operation * is:

Let R be the set of real numbers and * be the binary operation defined

1.	Let R be the set of real numbers and * be the binary operation defined on R as a * b = a + b - ab ∀ a, b ∈ R. Then, the identity element with respect to the binary operation * is:
A.	1/1 - a
B.	1 - a
C.	1
D.	0
Answer» E.

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