问题如下：
The target variable for the labelled training data to be used in Step 3 is most likely which one of the following?
选项：
A.A continuous target variable
A categorical target variable
An ordinal target variable.
解释：
B is correct. To predict which stocks are likely to become acquisition targets, the ML model would need to be trained on categorical labelled data having the following two categories: “0” for “not acquisition target”, and “1” for “acquisition
target”.
A is incorrect, because the target variable is categorical, not continuous.
C is incorrect, because the target variable is categorical, not ordinal (i.e., 1st, 2nd, 3rd, etc.).
关于这道题的B,C选项，如果选择了贴标签的categorical target variable, 但是题目中说只选5个，如果贴了标签之后发现有5个以上符合收购条件，那不是还得排序选出最适合收购的top 5吗？为什么不需要排序呢？
