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C语言程序设计单选题中等

C语言中,以下哪项能正确初始化一个长度为5的整型数组?

Aint arr[5] = {1,2,3};
Bint arr[5] = {1,2,3,4,5};
Cint arr[5] = {1,2,3,4};
Dint arr[5] = {1,2,3,4,5,6};