Why is the inner core SOLID even though it is hot enough to melt? A) because of the iron and nickel
B) because of the altitude
C) because of the temperature
D) because of the pressure

because of pressure maybe

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle