PLEASE HELP !

Consider the following phase diagram for FeFeCC3. On this phase diagram identify the ollowing: A) The eutectoid point. B) The eutectic point. C) The concentration region over which cast iron is observed to form. D) Any intermetallic compound on the diagram. E) Explain where and why pearlite forms. F) Does a special structure form at 4.3wt%C ? G) Explain why cast iron is formed for wt%C greater than 2.1% and why cast iron for weight %C above 4.3% are different than those formed for lower concentrations