The correct answer is neuroticism.
According to Big Five theory of personality, individuals either rate high, low or somewhere in between when it comes to five core personality traits- Openness, Conscientiousness, Extroversion, Agreeableness and Neuroticism. Neuroticism is a personality trait that is related to structural differences in brain systems related to sensitivity to threat and punishment. Neuroticism is characterized by moodiness, anxiety, incessant worrying and self-consciousness, and poor emotional regulation. Individuals who are high in neuroticism are likely to have poor mental health and interpersonal relationship.