When drawing up an ancillary revenue business case regarding baggage, it is important to include what categories of information? Group of answer choices Market research (demand and willingness to pay) only Market research (demand and willingness to pay), baggage handling savings (if unbundled) Market research (demand and willingness to pay), handling costs, systems and distribution costs and baggage handling savings (if unbundled) Market research (demand and willingness to pay), handling costs, systems and distribution costs, baggage handling savings (if unbundled) and a list of multiplier opportunities/threats