Senior management of a dairy organization asks the internal audit function to undertake an advisory...

According to the IIA Standards, follow-up is mandatory only for assurance engagements, where corrective action plans are agreed and tracked. Advisory services are intended to add value and offer recommendations but do not require formal follow-up by internal audit. Responsibility for implementing recommendations lies with management.

Options A and B improperly delegate follow-up responsibilities, and Option D incorrectly suggests mandatory follow-up for advisory engagements.