The correct answer is Palitana.
Palitana is a hill in Gujarat, India, that is considered sacred by Jains. It is home to over 800 Jain temples, making it the largest Jain pilgrimage site in the world. The temples are built on a series of hills, and the highest point is called Shri Shatrunjaya.
Girnar is another hill in Gujarat that is considered sacred by Jains. It is home to over 100 Jain temples, and the highest point is called Girnar Parbat.
Taranga is a hill in Gujarat that is not considered sacred by Jains. It is home to a few Jain temples, but it is not as popular as Palitana or Girnar.
Abu is a hill in Rajasthan that is not considered sacred by Jains. It is home to a few Jain temples, but it is not as popular as Palitana or Girnar.
Palitana is the most sacred hill for Jains because it is home to the largest number of Jain temples. The temples are built on a series of hills, and the highest point is called Shri Shatrunjaya. The temples are a UNESCO World Heritage Site.