The Nurse's Approach, When Introducing Hospital Equipment to a Preschooler

The nurse's approach, when introducing hospital equipment to a preschooler who seems afraid, should be based on which of the following principles?

A) The child may think the equipment is alive.
B) The child is too young to understand what the equipment does.
C) Explaining the equipment will only increase the child's fear.
D) One brief explanation will be enough to reduce the child's fear.