Read each sentence to find out whether there is any grammatical mistake/error in it the error any will be in one part of the sentence Mark the number of the part with error as your answer.If there is ‘No error’ mark(5).
To run a company effectively (1)/it is very important (2)/in knowing the strengths and weaknesses(3)/of the employees (4)No error(5)
There is grammatical error in sentence 3.
The correct usage would be 'to know..'.
Therefore, the correct option is option C.
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