The answer for this would be 10 seconds
Phagocytes are cells that kill bad things by engulfing them.
ANSWER: B
Guidance can be considered as a multitude of behaviors that parents exhibit towards their children. Parents often guide their children in different aspects of life which enables the children to grow up more successfully into healthy and responsible adults.
An example is when the child needs guidance on deciding which school he should chose and his parents tell him what school he should chose in the end.
Whatever is the best option for my brother/sister. That's what I can only say because you didn't list any options.