Final answer:
Software requirements validation should involve customers and stakeholders regularly to ensure the software meets the necessary needs and expectations.
Step-by-step explanation:
Software requirements validation is a critical process in the development of any software product. The process ensures that the software meets the needs and expectations of both customers and stakeholders. Customers, as the end users of the product, and stakeholders, who may include a range of individuals or entities with a vested interest in the project, such as government agencies or companies, should be actively involved in validation.
This involvement allows for the identification and correction of any issues before the software is completed, thus saving time and resources. Therefore, the correct answer to the question 'Software requirements validation should be viewed by whom and how often?' is B. Stakeholders, often. By regularly reviewing the requirements, stakeholders, including customers, ensure that the final product will meet their needs and conform to any necessary standards.