Consider the given statement as “ If B is a 3×4 matrix, then its column are 1×3 vectors”.

Here, the order of the matrix is 3×4 and its general form is [a1b1c1d1a2b2c2d2a3b3c3d3].

From the matrix, it is noticed that the columns of 3×4  matrix are of the form [abc]3×1.

Hence, the order of the every column of the matrix of order 3×4 is 3×1.

Hence, the statement is False_.