The important ideas proposed by Carl Rogers and Abraham Maslow are :

(A) People have a tendency to maximise self concept through self actualisation.
(B) There is a collective unconscious consisting of archetypes
(C) Behaviour is goal directed and worthwhile people try to express capabilities, potentials and talents to the fullest possible extent.
(D) An atmosphere of unconditional positive regard must be created in order to ensure enhancement of one's self concept.
(E) Human beings display a wide range of variations in psychological attributes (and it is possible)

Choose the correct answer from the options given below :

(A), (C), (D) only

The correct answer is Option 4: (A), (C), (D) only

Carl Rogers and Abraham Maslow are the founding fathers of Humanistic Psychology. Their approach emphasizes inherent human potential, free will, self-actualization, and the psychological growth of an individual.

A) People have a tendency to maximise self-concept through self-actualisation: Correct. Both theorists believed that the primary motivating force in human beings is the drive toward self-actualization—realizing and fulfilling one's maximum potential. For Rogers, this involves aligning the "real self" with the "ideal self" to enhance the self-concept.

(B) There is a collective unconscious consisting of archetypes: Incorrect. The concept of the collective unconscious and archetypes belongs to Carl Jung (Analytical Psychology), not the humanistic perspective of Rogers and Maslow.

(C) Behaviour is goal-directed and worthwhile people try to express capabilities, potentials and talents to the fullest possible extent: Correct. Humanistic psychology views human nature as inherently good, forward-looking, and creative. Individuals are seen as active, conscious beings whose behavior is directed toward meaningful growth and talent optimization.

(D) An atmosphere of unconditional positive regard must be created in order to ensure enhancement of one's self-concept: Correct. Unconditional Positive Regard is a core concept coined by Carl Rogers. It means providing non-judgmental acceptance and love to an individual, which is essential for a person to develop a healthy self-concept and become a "fully functioning person."