單項(xiàng)選擇題

Given:
11.String test = "Test A. Test B. Test C.";
12.// insert code here
13.String[] result = test.split(regex);
Which regular expression, inserted at line 12,correctly splits test into "Test A","Test B",and "Test C"?()

A.String regex = "";
B.String regex = " ";
C.String regex = ".*";
D.String regex = "\\s";
E.String regex = "\\.\\s*";

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