What defensive shape did the Union army use for the final 2 days at Gettysburg?

Explanation:

The Union battle line of Gettysburg was in the shape of a fishhook. During the Civil War's Battle of Gettysburg, the Union set out in a defensive formation matching a fish hook (General Slocum's line of defense). The Union Army strengthened its position on Culp's Hill and Cemetery Ridge. Positioned on high ground, the Union could easily send support where they were required. The Confederates more spread out formation where communication and support over the vast distance were more difficult.                                                      

ok sorry the answer is a. by their religion

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns