Which of the following is NOT considered a 'core activity of an establishment' under Section 2(1)(p) if the establishment is not set up for such activity?

Section 2(1)(p) lists activities that shall NOT be considered essential or necessary (i.e., non-core) if the establishment is not set up for such activity. These include sanitation works, security services, canteen and catering, loading and unloading, running of support-service hospitals and educational institutions, courier services, civil constructional works, gardening, housekeeping and laundry, and transport services. Thus all the options listed are excluded, making 'all of the above' the correct answer. Any activity of intermittent nature is also excluded even if it constitutes a core activity.