The value of the account type field is not being displayed correctly on the page. Assuming the custom controller is properly referenced on the…

For a Visualforce page to access and display a property from a custom controller, that property must be publicly accessible via a getter method. The Visualforce component framework uses these methods to read data from the controller. If the actType attribute is defined in the controller but lacks a public getter method (e.g., public String getActType() { ... } or is part of a public property with a {get;} accessor), the page cannot retrieve its value, resulting in it not being displayed.

1. Salesforce Developer Documentation

Apex Developer Guide

"Working with SOQL Queries": This section illustrates how controller properties are defined and used. It states

"To expose the results of a controller method to a page

the method must be public... For a page to be ableto use a property in a custom controller

the property needs a getter method." This directly supports option A.

Reference: Apex Developer Guide

Chapter 2: "Creating a Custom Controller"

Section: "Exposing Data to Visualforce Pages".

2. Salesforce Developer Documentation

Visualforce Developer Guide

"Custom Controllers and Controller Extensions": This guide explains the binding between Visualforce pages and Apex controllers. It details that expression language bindings like {!actType} resolve to getActType() or a public property actType with a get accessor. The absence of this getter prevents data retrieval.

Reference: Visualforce Developer Guide

Chapter 4: "Custom Controllers and Controller Extensions"

Section: "Creating a Custom Controller".

3. Salesforce Developer Documentation

Apex Developer Guide

"Using the with sharing

without sharing

and inherited sharing Keywords": This document clarifies that with sharing pertains to the enforcement of the organization's sharing model for record access

which is a different concern from property visibility for rendering on a page.

Reference: Apex Developer Guide

Chapter 6: "Security"

Section: "Using the with sharing

without sharing

and inherited sharing Keywords".