Majority of the settler left Charles fort because the Indians killed more then half the settlers.
It is considered as one of the country's largest military installations, the Fort has been part of some of the most momentous events of Irish history. During the Williamite Wars, it withstood a 13-day siege before it fell but later, in the Civil War of the early 1920s, the anti-Treaty forces on the retreat burned it out.
In conclusion, the majority of the settler left Charles fort because the Indians killed more then half the settlers.Therefore, the Option B is correct.
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