Correct Answer: A

Rationale: Educating parents about avoiding triggers is a crucial part of managing asthma in children to prevent future asthma attacks. By identifying and minimizing exposure to triggers, parents can help reduce the risk of asthma exacerbations and improve the child's overall quality of life.

Correct Answer: D

Rationale: Direct contact transmission occurs when pathogens are spread through skin-to-skin contact or body fluids. This mode of transmission includes activities like touching, kissing, or sexual contact where infectious agents can pass directly from one person to another. It does not involve large aerosols, suspended air particles, or dust as carriers of the pathogen.

Correct Answer: A

Rationale: The function of producing new offspring is not attributed to hormones. Hormones primarily regulate various physiological processes in the body such as growth, metabolism, reproduction, and immune response, but they do not directly play a role in producing offspring.

Correct Answer: C

Rationale: Type 2 diabetes is commonly associated with obesity and metabolic syndrome. These conditions are major contributing factors to the development of Type 2 diabetes due to insulin resistance and other metabolic abnormalities linked to excess body weight and unhealthy lifestyle habits.

Correct Answer: D

Rationale: All the listed conditions, central cyanosis, respiratory rate >70 breaths per minute, and grunting on assessment, are indicative of the need for oxygen therapy. Central cyanosis suggests severe hypoxemia, a respiratory rate >70 breaths per minute can indicate respiratory distress, and grunting is a sign of increased work of breathing. Administering oxygen in these situations can help improve oxygenation and support the child's respiratory function, making option D the correct choice.