Match each part of the graph (A,B,C) to its verbal description. Explain your reasoning behind your choice. I. half of the factory workers went on strike, and not enough smartphones were produced for normal shipments. II. The production schedule was normal, and smartphones were shipped to the retail store at a constant rate. III. A defective electronic chip was found, and the factory had to shut down, so no smartphones were shipped.

Based on the descriptions provided, we can match each part of the graph to its verbal description as follows:

I. C - half of the factory workers went on strike, and not enough smartphones were produced for normal shipments.

This matches with part C of the graph as it shows a significant decrease in the number of smartphones produced and shipped during this period, indicating a disruption in production due to the strike.

II. B - The production schedule was normal, and smartphones were shipped to the retail store at a constant rate.

This matches with part B of the graph as it shows a consistent, steady production and shipment of smartphones throughout this period, indicating normal operations.

III. A - A defective electronic chip was found, and the factory had to shut down, so no smartphones were shipped.

This matches with part A of the graph as it shows a sudden and complete halt in the production and shipment of smartphones during this period, indicating a shutdown of the factory due to the defective chip.