In a Business Activity Model (BAM), activities are categorized to represent a conceptual view of the business system. The planning activity 'Define marketing strategy' sets the goals and approach. An 'enabling' activity is one that acquires or makes ready the resources needed to carry out the core 'doing' activities. In this context, 'Advertise clothes' is the enabling activity because it creates the necessary market awareness and customer interest (a resource) required to successfully execute the primary 'doing' activity, 'Sell clothes', in line with the defined strategy.

A. Monitor sales: This is a 'monitoring' activity, which measures the performance of the core 'doing' activities against the plan.

B. Define sales targets: This is another 'planning' activity, as it involves setting the goals and measures that the business will work towards.

D. Sell clothes: This is the fundamental 'doing' activity. It is the core operational task that the marketing strategy and advertising are designed to support.

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1. Paul, D., & Cadle, J. (2020). Business Analysis (4th ed.). BCS, The Chartered Institute for IT.

Reference: Chapter 6, 'Analysing business processes', pp. 138-139.

Details: This section defines the five activity types in a consensus BAM. It explicitly states, "Enabling activities: these activities ensure that the resources and facilities required to carry out the ‘doing’ activities are available and ready for use." This supports classifying 'Advertise clothes' as an enabling activity that makes the resource of customer awareness available for the 'doing' activity of selling.

2. The Open University. (2019). M816: Business process management and systems. Courseware Block 2: Business process analysis and design.

Reference: Section 3.2, 'The Business Activity Model (BAM)'.

Details: The course material describes the BAM framework, explaining that enabling activities are triggered by planning activities to provision resources. It clarifies that planning defines 'what' and 'how', while enabling provides the 'wherewithal' (e.g., skills, materials, information) for the 'doing' activities. Advertising provides the 'wherewithal' of customer demand.