Final answer:
A challenge of requirement elicitation in the Waterfall Model for an Online Grocery Web Store System is limited stakeholder involvement during the initial stages which results in a lack of continuous feedback and difficulty in adapting to changing needs.
Step-by-step explanation:
For an Online Grocery Web Store System, a challenge of requirement elicitation in the Waterfall Model is option a) Limited stakeholder involvement during initial stages. This is because the Waterfall Model is a sequential design process, often used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, deployment, and maintenance. Once the requirements phase is finished, the model typically doesn’t cater well to going back and making changes without restarting the whole process, which can be both time-consuming and costly.
Limited stakeholder involvement often results in a lack of continuous feedback, which is crucial when business needs or market conditions change. If stakeholders can only provide input at the start and can’t contribute as the project evolves, the final product may not meet the current needs or expectations by the time it is delivered. This makes the Waterfall Model less flexible in accommodating changing customer needs, in contrast to more iterative and flexible methodologies like Agile.