Matthew received a promotion after turning in an important project. Matthew did not tell his supervisor that the majority of the project was done by someone else. He really wanted the promotion and decided not to mention that someone else was responsible for the successful project. It appears Matthew is at the of moral development.

Preconventional level

Explanation:

Preconventional level of moral development is the first level of moral development, where b individual will not follow a rule because it is the right thing to do but will only do so due to fear of punishment. This is mostly observed in children growing up and haven't had a choice to make on their own based on things being right or wrong.