问题如下：
The bids and bidders in a Dutch auction to sell 20,000 shares are as follows:
At what price are the shares sold? How many shares does each bidder get?
选项：
解释：
19,000 shares can be sold for 85 or more. 23,000 shares can be sold for 84 or more.
Shares are therefore sold for 84.
Bidders C, D, and G get the shares they have bid for. Bidder F gets 1,000 of the 4,000 shares it has bid for.
Bids sorted from highest to lowest:
老师能解释一下这道题吗
