Final answer:
The specific cloud computing feature that helps businesses serve their customers without service interruption and in a cost-effective way is option 2: Elasticity.
Step-by-step explanation:
The specific cloud computing feature that helps businesses serve their customers without service interruption and in a cost-effective way is Elasticity.
Elasticity in cloud computing allows businesses to easily and quickly scale their computing resources up or down as needed, based on customer demand.
This ensures that businesses can serve their customers without any service interruptions while also reducing unnecessary costs. For example, a company using a cloud-based e-commerce platform can scale up its resources during peak shopping seasons to handle increased website traffic, and scale down during slower periods to save on costs.