Sorting three numbers. Suppose that the variables a, b, c, and t are all of the type int. Explain why the following code puts a, b, and c in ascending order:

if (a > b) { t = a; a = b; b = t; }
if (a > c) { t = a; a = c; c = t; }
if (b > c) { t = b; b = c; c = t; }