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When a ferromagnetic rod is placed in a solenoid with current, what happens to the rod?

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When a ferromagnetic rod is placed in a solenoid with current, what happens to the rod?

(a) Retentivity increases

(b) Coercivity Increases

(c) Permanently Magnetized

(d) Nothing

I had been asked this question in examination.

I want to ask this question from Classification of Magnetic Materials in section Magnetic Properties of Materials of Engineering Physics II

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Right answer is (c) Permanently Magnetized

The explanation is: When a ferromagnetic material is placed inside a solenoid and a current is passed, the magnetic field of the solenoid magnetizes the rod and it becomes a permanent magnet.

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