humus, crystal, and ore water, weathered rock, and humus water, metamorphic rock, and crystal metamorphic rock, ore, and weathered rock
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A student is asked to make soil using the following substances: water, ore, humus, crystal, weathered rock, and metamorphic rock. Which combination of these substances should the student choose?
Possibilities:
- humus, crystal, and ore
- water, weathered rock, and humus
- water, metamorphic rock, and crystal
- metamorphic rock, ore, and weathered rock

water, weathered rock, and humus