human
Question: A student is studying different aspects of science, and today's area is magnetic properties. The student has a magnet, and is testing which sort of objects the magnet will have an attraction to. The student is surprised that the magnet tugs itself towards

Choices:
A) a plastic cup
B) a plaster wall
C) a grey stone
D) a paper plate
gpt
The correct answer is 2: a grey stone.