1. If the order of orders is as follows during connection trading, what is the correct indication of the price change over time? The numbers in the original characters are in order of order.

Sales volume Price Purchase quantity 10,600 100 10,500 10,400 300 10,300 200 10,200 10,100 200 200 9,900 9,800

10,100 - 9,900 - 10,600

10,600 - 10,100 - 10,200

10,100 - 10,200 - 10,300

10,600 - 9,900 10,400

10,600 - 10,200 - 10,100