Final answer:
The location famous for resolving disputes through duels is Bladensburg, Maryland. It was known for the "Bladensburg Dueling Grounds," not to be confused with famous battlegrounds like Gettysburg or Wild West towns like Dodge City or Tombstone.
Step-by-step explanation:
The location where numerous disputes were resolved through duels, as mentioned in the clue, is c) Bladensburg, Maryland. This area was infamously known as the "Bladensburg Dueling Grounds," where many duels were fought during the early 19th century. It is notable for the duel in 1820 between Commodore Stephen Decatur and James Barron, where Decatur was fatally wounded.
Both Dodge City, Kansas, and Tombstone, Arizona, were known as Wild West towns where gunfights, rather than formal duels, were more common, and Gettysburg, Pennsylvania, is famous for the pivotal Civil War battle that took place there, not for dueling.