 Hi and welcome to the session. I am Deepika here. Let's discuss a question. A is equal to matrix of order m by n whose arguments is given by aij is a square matrix if a m is less than n, b m is greater than n, c m is equal to n and d run of these. Let's start the solution. Let us first understand what is the meaning of square matrix. A matrix in which the number of rows are equal to the number of columns is said to be a square matrix. Thus an m cross n matrix is said to be a square matrix if m is equal to n. So for a square matrix m must be equal to n. So option c is correct and answer for the above question is c. I hope the question is clear to you by antique care.