Answer: According to Piaget, May Lin's ability to use a doll as a representation of a real baby illustrates that she is capable of: SYMBOLIC FUNCTION.
Explanation: Symbolic function in Piagetian theory illustrates the ability of an individual to mentally use an object (the doll) to represent something that is not physically present (her baby brother).
East Germany joined the Federal Republic of German in October 1990.
I think the answer is Spices (1)
The ability to transport natural resources.