Question

so then i...
confessed that i forgot my part and would talk to the teacher.
claimed that someone else was supposed to bring my part.
lied and said my mom threw my part of the project away.

Explanation:

To determine the most ethical or responsible choice, we analyze each option. Confessing (first option) shows honesty and a willingness to take responsibility and resolve the issue with the teacher, which aligns with positive behavioral and ethical standards. The other options involve shifting blame or lying, which are less ethical.

Answer:

A. confessed that I forgot my part and would talk to the teacher.