Children attending schools must have vaccines.

• A. Diphtheria, MMR, tetanus, polio
• B. Hepatitis B, Varicella, HPV, Rotavirus
• C. Diphtheria, tetanus, pertussis, polio
• D. Measles, mumps, rubella only

Answer: (A)

The idea being tested is which vaccines are typically required for children to attend school, aimed at preventing common, serious diseases in a setting where many kids are together. The best choice lists vaccines that cover the major diseases most often included in school-entry rules: protection against diphtheria, tetanus, and polio, plus protection against measles, mumps, and rubella. Diphtheria, tetanus, and polio have long been core targets of routine immunization programs because these diseases can cause severe illness and outbreaks; having them covered reduces risk across the whole student population. MMR is a single vaccine that protects against three diseases in one shot, which makes it a standard part of school vaccination requirements as well. This combination reflects the breadth of protection that schools commonly mandate.

The other options either include vaccines that aren’t universally required for school entry (such as HPV or Rotavirus) or miss a key component of the typical school vaccine schedule (for example, listing only MMR without the accompanying diphtheria, tetanus, and polio coverage).