If {:(f(x),=(sec^2x)^(cot^2x),",",x != 0...

If `{:(f(x),=(sec^2x)^(cot^2x),",",x != 0),(,=k, ",",x = 0):}` is continuous at x = 0 , then k is equal to

A

(a) 0

B

(b) 1

C

(c) e

D

(d) `e^(2)`

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The correct Answer is:

C

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