Crey | f: A → B will be an into function if range (f) ⊂ B, f(a) = B, B ⊂ f(a), f(b) ⊂ A

Question

f: A → B will be an into function if

Options :

range (f) ⊂ B
f(a) = B
B ⊂ f(a)
f(b) ⊂ A

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