An algorithm is shown in the pseudocode in Figure 1.

Figure 1

1  total_cost ← 0.00
2  count ← USERINPUT
3  WHILE count > 0 DO
4      item_price ← USERINPUT
5      total_cost ← total_cost + item_price
6      count ← count - 1
7  ENDWHILE

Select the option that identifies the line number where a relational operator is first used in the algorithm in Figure 1.