Which statement is an example of a symbolic representation?

Which statement is an example of a symbolic representation?

Jared puts a bowl on his head and tells his father he has on a firefighter's helmet.

Alicia tells her mother she wants to be a doctor when she grows up.

Lucas watches his grandmother remove the top from a container and then tries to take it off himself the following day.

Tricia sees her father's shoes and is able to think of her father even though he is out of view.