The study ESP, ghosts, and other subjects that do not normally fall into the realm of ordinary psychology. a. Rodsb. Reversible Figuresc. Perceptual expectancyd. Parapsychology

d. Parapsychology

Explanation:

Parapsychology: It was first introduced during the late 19th century regarding the spiritualistic movement.

The term parapsychology is defined as a study of the psychic phenomenon that implies the extrasensory perception, for example, precognition, psychokinesis, telepathy, clairvoyance, and psychometry, etc and other related paranormal claims such as synchronicity, near-death experiences, apparitional experiences, reincarnation, etc.

In the question above, the given statement signifies the parapsychology.