Liquid oxygen is:

Explanation

Liquid oxygen is paramagnetic because it contains unpaired electrons, which cause it to be attracted to a magnetic field. This property is due to the presence of two unpaired electrons in its molecular orbital configuration. In contrast, diamagnetic substances have all paired electrons and are repelled by magnetic fields. Ferromagnetic materials, like iron, have domains that align in a magnetic field and can retain magnetization, which is not the case for liquid oxygen. 'Antimagnetic' is not a recognized term in describing magnetic properties, thus irrelevant in this context.