Suppose a matrix A has n rows and m columns. Select the best statement. (The best condition should work with any positive integer n.) O A. If n < m then the m columns of A span R" as long as the columns are distinct. O B. If n < m then the m columns of A span R" as long as no column is a scalar multiple of another column. OC. If n < m then the m columns of A span R“ as long as no column is is the zero vector. O D. If n < m then the m columns of A may span R“. O E. If n < m then the m columns of A cannot span R". OF. If n < m then the m columns of A must span R". O G. none of the above

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