To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) Overriding the populate method of the ActionForm - This option is incorrect. In Struts 1.1, there is no "populate" method in the ActionForm class that can be overridden to change how Struts populates a form.
Option B) Overriding the processPopulate method of the Request Processor - This option is correct. In Struts 1.1, you can change how Struts populates a form by overriding the "processPopulate" method of the Request Processor. This method is responsible for populating the form with data from the request parameters. By overriding this method, you can customize the population process according to your requirements.
Option C) Overriding the populateBean method of the ActionMapping - This option is incorrect. In Struts 1.1, there is no "populateBean" method in the ActionMapping class that can be overridden to change how Struts populates a form.
Option D) All of Above - This option is incorrect. Only option B, overriding the processPopulate method of the Request Processor, is correct for changing how Struts populates a form in Struts 1.1.
The correct answer is B. This option is correct because you can change how Struts populates a form by overriding the "processPopulate" method of the Request Processor.