77. What is the speaker discussing?
(A) Production costs
(B) Sales performance
(C) Employee attendance
(D) Marketing budget

Questions 77 through 79 refer to the following excerpt from a presentation. 

Let's look at the sales breakdown for the last quarter on the screen. As you can see, the North region continues to be our strongest market, accounting for nearly half of our total revenue. However, we have a serious issue in the region represented by the smallest slice of the chart. Sales there have dropped significantly because a major competitor opened three new stores in that area last month. We need to develop a strategy to win back those customers immediately. 

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第 77 題至第 79 題參考以下簡報摘錄。

我們來看看螢幕上顯示的上一季的銷售明細。如您所見，北部地區仍然是我們最強勁的市場，貢獻了近一半的總收入。然而，圖表中佔比最小的地區卻面臨嚴峻的問題。由於一家主要競爭對手上個月在該地區開設了三家新店，該地區的銷售額大幅下降。我們需要立即制定策略，贏回這些客戶。