Which of the following are the correct ways to define an array of 2 rows and 3 columns? int[ , ] a; a = new int[2, 3]{{7, 1, 3},{2, 9, 6}}; int[ , ] a; a = new int[2, 3]{}; int[ , ] a = {{7, 1, 3}, {2, 9,6 }}; int[ , ] a; a = new int[1, 2]; int[ , ] a; a = new int[1, 2]{{7, 1, 3}, {2, 9, 6}};

• 1, 2 , 3
• 1, 3
• 2, 3
• 2, 4, 5
• 4, 5