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Point out the correct statement.

a) findLinearColumns will also return a vector of column positions can be removed to eliminate the linear dependencies
b) findLinearCombos will return a list that enumerates dependencies
c) the function findLinearRows can be used to generate a complete set of row variables from one factor
d) none of the mentioned

Answer: b
Explanation: For each linear combination, it will incrementally remove columns from the matrix and test to see if the dependencies have been resolved.

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