Final answer:
The correct answer is 'intense,' indicating a high degree of relatedness in the diversification strategy due to significant sharing of resources and activities among businesses.
Step-by-step explanation:
The question addresses the degree of connection between various businesses when they share resources and activities, which impacts the nature of their diversification strategy. As companies engage in diversification strategies, they often vary in the level of integration and relatedness between their different business units. In this case, the correct answer is: 'The more sharing of resources and activities among businesses, the more intense is the relatedness of the diversification.' This signifies that the business activities are closely related, leading to a diversification strategy where different units are not only diversified in their products and services but also maintain a strong linkage through shared resources, leading to a highly integrated operation.