Answer:
The magnet's real problem with being a magnet is:
D. The magnet can't get physically close to his friends because their magnetic forces push each other away.
Explanation:
In the short story "The Sad Tale of the Lonely Magnet," the narrator is the magnet himself. He is in general happy for being a magnet, saying it is advantageous to be able to hold on to things without using his hands. He does express some difficulties concerning big metallic objects, such as buses, because he has to use a lot of strength to pass by them without getting stuck. But that is not the issue that really bothers him.
<u>The magnet's real problem is the fact that he can't get physically close to his friends. They are pushed away by the magnetic force they exert. That makes him sad, especially because he would like to hug, high five, or simply shake hands with his best friend.</u> In the end of the story, the magnet meets someone who has the opposite polarity and, for that reason, instead of repelling, they attract each other. So, we have a happy ending.