The word Wunderkind probably means ______.

A．the toys the miniprofessor used
B．the babies taking part in the research
C．the researchers conducting the study
D．the teachers at the day-care center

A．an infant prodigy performs much better than ordinary kids
B．developmental psychology is an interesting subject
C．babies can learn intricate tricks so long as they are trained
D．toys are important tools to teach science with