Role conflicts are conflicts and conflicts that occur when a person plays one role or several different roles at the same time due to incompetence. Inter-role conflicts refer to conflicts between different roles that a person plays. It mainly manifests in two situations: one is the conflict in space and time; the other is the conflict in the content of the behavior model. According to the above definitions, Which of the following are conflicts between roles:. ['Xiaoqiang returns home from school to do housework and tutors his younger brother, and can not complete the learning task until early in the morning.', 'After Wang Lin got married, his wife and mother had a disagreement, and while working, he had to mediate between the two.', 'Li Hong wants to apply for a clinical medicine major in the college entrance examination. Her parents asked her to apply for an economic major. The teacher suggested that she apply for an English major.', 'Yang Ming has recently been promoted from an ordinary employee to the deputy director of the department. New challenges have kept him busy.']