You have a scenario where you need to execute a block of code based on the value of an expression that can take on different integer values. Which control structure in Go would be the most appropriate choice for this scenario?

The most appropriate choice for this scenario in Go would be the switch control structure. The switch statement evaluates an expression and compares it against multiple possible cases. It is particularly useful when dealing with multiple conditions and provides a concise and readable way to handle various cases efficiently. Unlike if-else statements, which evaluate conditions one by one, switch statements offer better performance as they directly jump to the matching case. Therefore, in scenarios where different integer values need to be evaluated, switch is the preferred choice.