1. Multiple Choice: Which of the following is the most common cause of pneumonia in infants and young children? A) Streptococcus pneumoniae B) Haemophilus influenzae type b C) Respiratory syncytial virus (RSV) D) Mycoplasma pneumoniae Correct Answer: C) Respiratory syncytial virus (RSV) Rationale: RSV is the leading cause of bronchiolitis and pneumonia in infants and young children worldwide. 2. Fill-in-the-Blank: The first-line treatment for acute otitis media in children is __________. Correct Answer: Amoxicillin Rationale: Amoxicillin remains the first-line therapy due to its safety, efficacy, and cost-effectiveness. 3. Multiple Responses: Select all that apply. Which of the following are recognized complications