What are the six rules/guidelines for SIMPLE inheritance? A subclass is forced, by the compiler, to add new methods. Data fields in the super class are inherited by the subclass. Constructors are always inherited Constructors are never inherited A subclass can never override super class methods. A subclass may introduce new data fields. A subclass must introduce new data fields. Methods in the super class are inherited by the subclass. A subclass may override super class methods. A subclass may introduce new methods