In psychology, the definition of consciousness includes all of the following experiences except a. perceptions b. a sense of self c. sensations d. biological processes

The right answer is D.  biological processes.

Biological processes occur continuously, it continues regardless of the state of consciousness of the body, to keep it alive.

Consciousness is a mental phenomenon characterized by a set of elements more or less intense and present according to the moments: a certain feeling of unity during the perception by the mind or by the senses (identity of the self), the feeling that there is a background in us that "sees", a rather passive and global phenomenon, contrary to the purely intellectual activities of the mind, active and localized, and which are linked to the action (for example the projection, the anticipation, history, time, concepts ..).

Consciousness is "what sees" without being assimilated to what is seen, it is what integrates at every moment by creating stable relationships between things, like neural networks. Consciousness is an abstract place, because it is impossible to locate somewhere in the body, which appears every moment at the exact moment when the perceptions of the senses and the mind merge, the screen on which all the intellectual activities of the 'mind, largely imaginary (mental representations: consciousness of the world, of others, self ..) but effective in their own way, as well as emotional life.