Explain the difference between KVC and KVO in Swift.

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KVC (Key-value-coding)

It allows object properties to be accessed at runtime using strings rather than knowing the property names statically during development.

KVO (Key-Value Observing)

KVO is one of the methods for observing program state changes in Objective- C and Swift. If an object has instance variables, KVO makes other objects observe the modifications or changes to those variables.

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