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.

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