In the context of the SOLID principles, what does the L in SOLID stand for, and what is its primary purpose? 

The Liskov Substitution Principle (LSP) is a key component of the SOLID principles of object-oriented design. It asserts that if a subclass is a derived type from a superclass, instances of the subclass should be able to replace instances of the superclass without affecting the correctness of the program. This principle encourages the design of robust and extensible software systems, as it ensures that derived classes adhere to the behavior expected by their base classes. By adhering to LSP, developers can create more modular and interchangeable components, facilitating easier maintenance and scalability. Option B is incorrect because the Law of Demeter, while important for reducing coupling, is not what the L in SOLID refers to. Option C is wrong as Layered Architecture is not a SOLID principle but rather a design pattern for structuring software. Option D is incorrect; Lifecycle Management is not one of the SOLID principles. Option E is wrong as the List Abstraction Principle does not exist in the context of SOLID principles.