After Lava Cools Below the Curie Point,which Is About _____,Atoms $\circ$

After lava cools below the Curie point,which is about _____,atoms in iron-bearing minerals become magnetized in the direction of the Earth's magnetic field at that time and place.

A) 50 ^$\circ$ C
B) 250 ^$\circ$ C
C) 550 ^$\circ$ C
D) 850 ^$\circ$ C
E) 1150 ^$\circ$ C