A 58-year-old female presents with a history of fever of one week’s duration ass

A 58-year-old female presents with a history of fever of one week’s duration associated with rhinorrhoea, headache and cough productive of yellowish sputum. She has had type 2 diabetes for 8 years, complicated by painful peripheral neuropathy. Her present medications include gliclazide 40 mg twice daily, metformin 500 mg three times a day and amitriptyline 75 mg at bedtime. Physical examination reveals temperature of 38°C, respiratory rate 18/min, blood pressure 110/70 mmHg, mild posterior pharynx erythema, tenderness over the maxillary sinus and fine inspiratory crackles at the right lung base. Investigations reveal the following: Investigation Result Haemoglobin (Hb) 110 g/l 115-155 g/l White cell count (WCC) 9.0 x 109/ 4.0-11.0 x 109/ Reticulocytes 6% Sodium (Na+) 132 mmol/l 135-145 mmol/l Potassium (K) 4.0 mmol/l 3.5-5.0 mmol/l Chloride (Cl-) 98 mmol/l 98-106 mmol/l Bicarbonate (HCO3) 22 mmol/l 24-30 mmol/LBilirubin 40 μmol/l 2-17 μmol/l Chest X-Ray (CXR) Infiltrates at R. Lower zone
Which of the following drugs should be used to treat this patient? A-Erythromycin b-Levofloxacin c-Co-amoxiclav d-Doxycycline