Which of the Following Is True About the Use of Tobramycin

Which of the following is true about the use of tobramycin?
1) It is primarily used by patients with cystic fibrosis.
2) It is intended to manage chronic infections with Pseudomonas aeruginosa.
3) It prevents deterioration of lung function due to recurrent infections.
4) It has very good lung bioavailability.
5) It is associated with a high rate of bacterial resistance.

A) 1 and 2 only
B) 3 and 5 only
C) 1, 2, 3, and 5 only
D) 1, 2, 4, and 5 only