Correct option is D
Ans (d)
Sol. Pre-conscious: This refers to thoughts or memories that are not currently in conscious awareness but can be easily brought to consciousness with little effort.
Semi-conscious: This is a state where a person is partially aware, typically occurring when someone is in a state between sleep and full wakefulness, and some information may not easily reach full awareness.
Conscious: This refers to thoughts, feelings, and experiences that a person is fully aware of at any given moment. These are the experiences that are easily accessible to awareness.
Unconscious: This refers to mental processes that are not easily accessible to conscious awareness. Unconscious thoughts and memories are typically hidden and can only be accessed with significant effort, such as through psychoanalysis.