Mycobacterium avium intracellulare mycobacterium scrofulaceum mycobacterium marinum

Which of the following antibiotic combinations might be used for treating MAC infections?

1: Clarithromycin and ethambutol
2: Penicillin and amoxicillin
3: Azithromycin and amoxicillin
4: Clarithromycin and rifampin