What is the printout of the following switch statement?

```
char ch = 'a';

switch (ch)
{
case 'a':
case 'A':
cout << ch << endl; break;
case 'b':
case 'B':
cout << ch << endl; break;
case 'c':
case 'C':
cout << ch << endl; break;
case 'd':
case 'D':
cout << ch << endl;
}
```

A. aa
B. a
C. abcd
D. ab


B. a

Computer Science & Information Technology

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