The table indicates which antibiotics work against the various kinds of bacteria. The shaded sections indicate that the antibiotic is effective against that category of bacteria. A person has an illness caused by one type of $\text{Streptococcus}$ bacterium and a second infection caused by one type of $\text{Pseudomonas}$ bacterium. Which antibiotic should be taken?
- A1 or 6
- B2 or 4
- C3 or 4
- D5 or 6