To answer this question, we need to have knowledge of the epic Mahabharata, specifically the events leading to the great war.
Option A) Dushasana - This option is correct because Dushasana, one of the Kaurava warriors, shot the first arrow, thus symbolically beginning the war. This action was seen as a declaration of war by the Kauravas.
Option B) Arjuna - This option is incorrect because Arjuna, one of the Pandava warriors, did not shoot the first arrow to begin the war.
Option C) Duryodhana - This option is incorrect because Duryodhana, the leader of the Kauravas, did not shoot the first arrow to begin the war.
Option D) Bhishma - This option is incorrect because Bhishma, a respected warrior and grand-uncle of both the Pandavas and Kauravas, did not shoot the first arrow to begin the war.
The correct answer is A) Dushasana. He shot the first arrow, thus initiating the war.