At 25 °C a pure substance is examined at the molecular level. The molecules remain in continuous contact, frequently breaking and reforming hydrogen bonds, and the sample maintains a fixed volume while adopting the shape of its container. Which substance below is most likely in the physical state described?
a) CH4(g) at 25\,°C
b) Hg(l) at 25\,°C
c) H2O(l) at 25\,°C
d) H2O(s) at -10\,°C