问题如下：
Which of the following statements is the most likely TRUE about the trend of support level?
选项：
A.K Company's stock price is at a low price status. Its price decreases to $20. After that, many investors begin to buy orders, and the price increases to $23.
B.M Company' stock price has been in an uptrend for one week. When the price increases to $31, investors start to buy orders. Then the price decreases to $29.
C.W Company's stock price has been in a down trend for five days. The price decreases to $25, and continues to go down to $21.
解释：
A is correct.
Choice A difines the support level.
菲菲老师，这题怎么去分析呢？我明白阻力位和支撑位的意思，但是感觉跟答案不同。
