When there is a challenge, Luis is up for it. Deadlines and complex tasks that would send others running are enjoyable to Luis, who believes that he is in control of his work performance and, if he applies himself, will be able to succeed. Luis is most likely high in the trait of .

internal locus of control

Explanation: individuals with a high level of internal locus of control always have a feeling that whatever happens in their lives, their actions are responsible and no one else is. They believe that their actions are the primary cause of what ever happens in their lives.

Luis is most likely to have a high internal locus of control because he believes that he is in control of his performance and if he applies himself well, he will success i.e his success is in his hands, depending on how well he performs.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.