Define the Block scope variable.
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The block scope of a variable means that the variable is accessible within the block that is between the curly braces.
So the scope of a variable is a region where a variable is accessible. There are two scope regions, A global and block or local.
A block scope variable is also known as a local scope variable. A variable that is defined inside a function (like main) or inside a block (like loops and if blocks) is a local variable. It can be used ONLY inside that particular function/block in which it is declared. a block-scoped variable will not be available outside the block even if the block is inside a function.