Which of the following is true about soft iron and steel?

• The retentivity of soft iron is less than steel.
• The coercivity of steel is greater than soft iron.
• Soft iron and steel are both ferromagnetic.

2 and 3

• Coercivity is the intensity of the applied magnetic field required to reduce the magnetization of a given material to zero. 

• Retentivity is the capacity of an object to retain magnetism after the action of the magnetizing force has ceased.

• Steel has more coercivity, and less retentivity than iron.