We plan to launch the PB protein biscuit mid$-$April $2024.$ Although Penny Sanchez has, to date, managed all our marketing campaigns in$-$house the protein biscuit is aimed at a wider market than our existing customer base and she thinks it might be better to employ an external company She has researched the cost of potential marketing campaigns, using either in$-$house resources or an external company $($Table $2$ attached$).$ As finances are limited$,$ Julia Matthews, Finance, Director, wants to use a zero$-$based budgeting $($ZBB$)$ approach to establish the marketing budget for the protein biscuit range. Please include in the briefing paper an explanation of$.$ Question $2$ How to use a ZBB approach to determine the marketing budget for our protein biscuits. Please use the information in Table $2$ to support your explanation. $[24$ marks$]$ Table $2$: Cost of potential marketing campaigns for the protein biscuit Notes: $1.$ The external marketing company's optional packages are only available if the basic package is also purchased. $2.$ Diet Divas is the second largest slimming club in Ceeland.