This algorithm is designed to find the minimum value held within an array called testscore. This array will hold ten values.
Line 1 SET minimum TO testscore 
Line 2 FOR counter FROM 1 TO 9 DO
Line 3 IF testscore[counter] ˃ minimum THEN
Line 4 SET minimum TO testscore[counter]
Line 5 END IF
Line 6 END FOR
Explain the role of the variable ‘counter’ in this example.