Computers and Technology

In a vlookup formula, what does the argument column_index_number mean?

the secret index number that each column in an excel worksheet has
the number of the column within the selected table array where the lookup result is located
a numerical representation of the letters at the top of a worksheet; for example, a = 1, b = 2, etc.
numbers a user assigns to columns in a worksheet

answer
Answers: 1

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Do you know the correct answer?
In a vlookup formula, what does the argument column_index_number mean?

the secret index...

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