https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_custom.htm

When comparing Lightning Web Components (LWC) with Visualforce for the View layer in the MVC paradigm, several advantages stand out.
Option A: Self-contained and reusable units of an application
Correct Advantage.
LWCs are built using modular components that encapsulate their own structure, style, and behavior.
Components can be reused across different parts of the application, promoting consistency and reducing development time.
This modularity allows for better maintainability and scalability.
LWC leverages modern web standards and offers a rich set of base components provided by Salesforce.
Developers can use pre-built components for common functionalities, speeding up development.
The ecosystem is continuously expanding, with contributions from Salesforce and the community.
Debug logs are a feature of Salesforce that applies to both Visualforce and LWC.
This is not an advantage specific to LWC in the context of the View layer.
Option D: Built-in standard and custom set controllers
Advantage of Visualforce.
Visualforce provides built-in standard controllers and allows for custom controllers and controller extensions.
In LWC, controllers are written in JavaScript, and data access is typically done via Apex methods.
This is an area where Visualforce has more built-in support.
Conclusion:
The two advantages of using Lightning Web Components over Visualforce in the View layer are:
Option A: Self-contained and reusable units of an application.
Option C: Rich component ecosystem.
These advantages stem from LWC's modern architecture and adherence to web standards, enabling more efficient and modular development.
Reference:
Lightning Web Components Basics
Component-Based Framework
Option C: Rich component ecosystem
Correct Advantage.
Base Components
Lightning Web Components Open Source
Options Not Applicable:
Option B: Log capturing via the Debug Logs Setup page
Not a View Layer Advantage.