单选题Given: What is the result?（）A CanadaB null CanadaC Canada nullD Canada CanadaE Compilation fails due to an error on line 26.F Compilation fails due to an error on line 29.
单选题
Given: What is the result?（）
A
Canada
B
null Canada
C
Canada null
D
Canada Canada
E
Compilation fails due to an error on line 26.
F
Compilation fails due to an error on line 29.
参考解析
解析：
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