When a patient with AIDS is admitted with possible pneumonia, the physician, a GP, orders airborne isolation. What is the correct response?

A) a TST skin test should be placed to determine if the patient may have TB
B) a sputum specimen should be collected for AFB daily x3, if TB is suspected
C) if the chest radiograph is clear, isolation can be discontinued
D) TB is not transmitted person to person and does not require isolation