False statement regarding second law of thermodynamics is

Options

A. It is imposible to construct a mackine working in cycles which transforms heat from a lower temperature region to higher temperature region without intervention of any ecternal agency.
B. Heat cannot flow from a colder body to a hotter body on its own
C. Any spontaneous process taking place in isolated system, `Delta S lt O `
D. All spontaneous processes are thermodynamically irreversible and entropy of the system increases in all spontaneous processes.

Answer

C