human
We are studying the course "Introduction to Data Science and AI". Answer the following multi-choice question.

What reasons can lead to unfair and unethical AI and Data Science models and algorithms?

1. Sampling bias 
2. Low memory capacity of embedded devices 
3. Overly rigorous testing and use of the common task method 
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
Yes

--- Answer ---
grounded