Final answer:
Without additional context, the impact of 100 people withdrawing from community development on Big Business and Commerce (BBC) is unpredictable. The effect can lead to either an increase or decrease in economic activity, or it could remain unchanged, depending on the specific roles and contributions of those withdrawing.
Step-by-step explanation:
If 100 people withdraw from developing the community, the impact on Big Business and Commerce (BBC) can vary based on the context of their withdrawal. However, generally speaking, if these individuals were consumers or potential employees, their withdrawal could lead to a decrease in economic activity for local businesses. This decline could manifest through fewer purchases, less availability of skilled labor, or a decline in consumer confidence. Conversely, if these people were competitors, their withdrawal may potentially lead to an increase in business for the remaining enterprises.
The answer to the question depends on the role of the people withdrawing. As such, without more context, the most appropriate answer is D. Becomes unpredictable, because the impact could vary widely depending on the circumstance.