Final answer:
In the immediate market period, a producer does not have time to respond to a change in demand. Therefore, the producer ignores the change in demand.
Step-by-step explanation:
In the immediate market period, a producer does not have enough time to respond to a change in demand. Since the producer cannot adjust prices or production immediately, option 4) The producer ignores the change in demand is the most accurate choice. In this period, the producer is unable to make any adjustments to meet the new demand.