If f (X) = { ( a x + b,if x le 1 ),(2, ...

If ` f (X) = { ( a x + b,if x le 1 ),(2, if x gt 1 ):}` is continuous at x = 1, then the relation between a and b is

A

a + b = 1

B

a = 6

C

a + b = 2

D

a - b = 2

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The correct Answer is:

C

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