A Patient Has Been Taking Antitubercular Therapy for 3 Months

A patient has been taking antitubercular therapy for 3 months.The nurse will assess for what findings that indicate a therapeutic response to the drug therapy?

A) The chronic cough is gone.
B) There are two consecutive negative purified protein derivative (PPD) results over 2 months.
C) There is increased tolerance to the medication therapy,and there are fewer reports of adverse effects.
D) There is a decrease in symptoms of tuberculosis along with improved chest x-rays and sputum cultures.