Answer is B

In experimental approach an independent variable can be induced but it is more destructive to subjects compared to measurement approaches. Most of the experimental studies are initially done as animal studies. 

Answer is A 

Answer is C 

Answer is C

Psychosocial theory by Erik Erikson:

Erikson described 8 stages of life cycle. Each stage demands resolution before the next stage can be satisfactorily negotiated.

• Stage 1 - Basic Trust Versus Basic Distrust (Hope)

• Stage 2 - Autonomy (vs) Shame (Will)

• Stage 3 - Initiative (vs) Guilt (Purpose)

• Stage 4 - Industry (vs) Inferiority (Competence)

• Stage 5 - Identity (vs) Confusion (Fidelity)

• Stage 6 - Intimacy (vs) Isolation (Love)

• Stage 7 - Generativity (vs) Stagnation (Care)

• Stage 8 - Integrity (vs) Despair (Wisdom)

Answer is C 

Answer is A