The answer to this question is <span>object permanence
</span><span>object permanence refers to the understanding that an object will still remain in a place even though we stop observing it directly.
</span>This psychological phenomenon is the one that make children think their parents is disappearing when they're playing peek-a-boo.
B. Is the answer.........
Do u mean chickenpox? if so-
*fever
*tiredness
*loss of appetite
*headache
(these are only a few)
It would be A. Factor Loadings
