.Let f be a function from X to Y.8 If X is second countable, which of the following conditions on fimplies that Y is *.s
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.Let f be a function from X to Y.8 If X is second countable, which of the following conditions on fimplies that Y is *.s
.Let f be a function from X to Y.8 If X is second countable, which of the following conditions on fimplies that Y is *.second countable (1 (1 نقطة) open, onto o continuous, open O continuous, onto O open o homeomorphism O