Final answer:
The correct inequality to represent the number of customers X that can travel in the elevator with the operator, without exceeding the limit of 17 people, is X < 17.
Step-by-step explanation:
The situation described involves an elevator with a capacity limit concerning the number of people it can hold at one time. The fact that the elevator operator is already present means they must be accounted for in the total number of people allowed in the elevator. Since the total number of people permitted in the elevator, including the operator, should not exceed 17, we want to find the inequality expression that represents the maximum number of additional customers X that can be in the elevator with the operator.
The correct inequality to represent the situation where X is the number of customers that can join the operator without exceeding the elevator's limit is X < 17. This indicates that the number of customers, X, must be less than 17 in order to not surpass the elevator's capacity when the operator is included.