According to Wilhelm Wundt,what was the focus of psychology

A)  to understand functions of behaviour 
B)  to understand unconscious motivation 
C)  the scientific study of observable behaviour 
D)  the scientific study of conscious experience

Conscious Experience

The awareness of one's own thoughts, feelings, and surroundings, which encompasses various cognitive processes and states of mind.

Wilhelm Wundt

Wilhelm Wundt is often regarded as the father of psychology; he established the first psychological laboratory in Leipzig, Germany, in 1879, marking the formal beginning of psychology as a separate science.

Scientific Study

A systematic investigation and analysis of materials and sources in order to establish facts and reach new conclusions.