After the following program is finished, how many bytes are written to the file t.dat?

Question

```
import java.io.*;

public class Test {
public static void main(String[] args) throws IOException {
DataOutputStream output = new DataOutputStream(
new FileOutputStream("t.dat"));
output.writeChar('A');
output.close();
}
}```
a. 2 bytes.
b. 4 bytes.
c. 8 bytes.
d. none of the above.

Answer 1

a Two bytes of Unicode for 'A' is written