How can you make a temporary magnet?

Aishwarya wanted to identify the magnet out of three similar-looking bars she had. She used a bar magnet and got the following results. Which of the following deductions based on the results made by her is true?

Result for

I - P was attracted to North pole of magnet but Q was repelled.

II - Both P and Q were attracted to the South pole.

III - When the magnet was brought near P and Q, it had no effect.

Conclusion drawn by Aishwarya

a. Both iron bars I and II are magnets

b. Iron bar II is made of magnetic material but iron bar III is made of non-magnetic material.

c. Only iron bar I is magnet.

d. Only iron bar III can become a temporary magnet when kept with a magnet.