Final answer:
Big body play involves using the body in physical activities and interactions for play.
Step-by-step explanation:
A. A child leaps into a person's lap on a sofa. This is an example of big body play where the child is using their body to interact with another person in a playful way.
C. A child jumps off a piece of playground equipment. This is another example of big body play as the child is using their body to engage in physical activity and explore their environment.
D. A group of children playing tag. This is also a form of big body play where children are actively using their bodies to chase and run.
Therefore, all of the above are normal forms of big body play.
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