Which of the following correctly accesses every element of a two-dimensional array a, going down each column instead of across every row? a)for(int x = 0; x < a[0].length; x++) for(int y = 0; y < a.length; y++)
	b.	for(int x = 0; x < a.length; x++) for(int y = 0; y < a.length; y++)
	c.	for(int x = 0; x < a.length; x++) for(int y = 0; y < a[0].length; y++)
	d.	for(int x = 0; x < a.length[0]; x++) for(int y = 0; y < a[0].length; y++)
	e.	for(int x = 0; x < a.size; x++) for(int y = 0; y < a[0].size; y++)