* SOSL:
* Designed for full-text searches, making it faster for unstructured or broad text searches across multiple objects.
* Ideal for searching multiple fields simultaneously.
* SOQL:
* Optimized for structured queries where you need more control over filtering and relationships.
* Can return up to 50,000 records in a single query, while SOSL returns only 2,000.
* C and D are incorrect because SOSL is faster for text searches, not SOQL.
* SOQL vs. SOSL: https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl
/sforce_api_calls_soql_sosl_intro.htm
Why Not Other Options?References:

Declarative customizations, such as workflows, process builder, validation rules, and flows, offer a no-code approach to customizing Salesforce. Below are the key benefits:
* Declarative customizations automatically update with each Salesforce release (A):Salesforce ensures that declarative tools are automatically updated during new releases, eliminating the need for manual intervention or code refactoring.

* Why Controller?
* A custom controller allows:
* Complex validation involving multiple objects.
* Redirection to another Visualforce page upon success.
* Controllers can implement custom save logic and redirect using PageReference.
* Why Not Other Options?
* A. Apex: Apex is the underlying programming language, but a controller specifically handles the Visualforce logic.
* B. Trigger: Triggers execute on DML events, not on button clicks in Visualforce.
* D. Extension: Extensions enhance standard controllers but are not necessary here since a custom controller is being built.
* Controllers and Extensions: https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages
/pages_controller_custom.htm
References:

For declarative development:
* A. Record-Triggered Flow: Allows building complex logic declaratively without code.
* D. Validation Rules: Enforce data quality by validating record fields before saving.

* Public Method (A):The parent component can call a public method defined in the child component to pass data directly.