Is it 1) mind only; 2) matter only; 3) both mind and matter; 4) more than just mind and matter; or 5) neither mind nor matter?
If it is the mind then all matter needs the mind. If it is matter then all things needs matter. If it is mind and matter then all things need both mind and matter. If it it is more than mind and matter then all things need mind, matter and the unknown things. If it is neither mind nor matter then all things need some unknown thing.
The world can be explained with what we have, namely the mind and matter. But the matter seems not to need the mind to exist. Death is a prime example of the matter continuing after the mind disappears. Whether the mind and/or some other unknown exists or disappears only matter exists. The only conclusion we can draw is it is monism, and it is matter only.
signature103 