To answer this question, we need to understand the story of Pandu, the father of the Pandavas, as described in the Mahabharata.
Option A) Due to Curse - This option is correct. Pandu died at a relatively young age due to a curse. According to the story, Pandu was cursed by a sage named Kindama. Pandu mistakenly shot an arrow that struck and killed Kindama and his wife while they were in the form of deer. As a result, Kindama cursed Pandu, saying that he would also die if he ever engaged in sexual intercourse. This curse prevented Pandu from having children through his wives, Kunti and Madri, and eventually led to his early death.
Option B) In Battle - This option is incorrect. Although Pandu was a skilled warrior, he did not die in battle. His early death was a result of the curse mentioned above.
Option C) Someone killed him - This option is incorrect. There is no mention in the Mahabharata that Pandu was killed by someone. His death was a result of the curse he received from Sage