A process by which a person becomes protected against a disease through vaccination.
Example:include tetanus, diphtheria, mumps, measles, pertussis (whooping cough), meningitis, and polio
For the 3rd one it would be D. You see the evidence when it says “to avoid having students gather in groups”
4 meters. That's 400 centimeters which is clearly greater than 28 cm.
This is called using context clues.
Swears maybe not sure tho
