Choose the answer that corrects the following code. FILE * file1; : if ((file1 = open("/valid_dir/existing_file", O_RDONLY, 0666)) == ERROR) { /* /valid_dir/existing_file is guaranteed to exist */ :

Bitwise OR O_RDONLY with another flag

Do not open a file within a condition

Use either one of 'O_RDONLY' and '0666'

Replace the declaration with: int file1;

Answer:
Replace the declaration with: int file1;

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