Which of the following is true about local variables?

Local variables are designed to be used within the specific context of the expression in which they are defined. This means that their scope is limited to that particular environment, and they cannot be accessed outside of it. This behavior is crucial in ensuring that the variables do not interfere with each other across different expressions or components, thereby promoting better organization and manageability of code.

The other aspects of local variables include their capacity to hold temporary values during the execution of an expression, but the key characteristic is their availability only within the context where they are declared. This characteristic enables developers to create concise and focused code without the risk of variable name collisions or unintended side effects from interactions with other parts of the application.

While local variables can indeed hold values defined by other variables, the emphasis in their definition and usage is primarily on their scope, which is specifically tied to the expression rather than their derivation. As for limits on the number of local variables, there is typically no strict cap on their usage within an interface, allowing developers the flexibility to use as many as needed to facilitate their expressions.