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Let f(x)={((x-4)/(|x-4|)+a, xlt4),(a+b,...

Let `f(x)={((x-4)/(|x-4|)+a, xlt4),(a+b, x=4),((x-4)/(|x-4|)+b,x gt 4):}` Then , f (x) is continuous at x = 4, when

A

a = 0, b = o

B

a = 1, b = 1

C

a = -1 , b = 1

D

a = 1, b = -1

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The correct Answer is:
D
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