What aspect of personality is fairly consistent across cultures,according to research findings

A)  Big Five trait structure 
B)  conceptions of the self 
C)  views of national character 
D)  use of defence mechanisms

Big Five Trait

A theory in psychology that outlines five broad dimensions of personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Defence Mechanisms

Psychological strategies employed by individuals to cope with reality and to maintain self-image.