During Dikeledi Sathekge's presentation in Series $1,$ Class $2$ of the

MiniMaster Class held on $5$ September $2024,$ what did she identify as

critical in u$.$pplier development programmes?

a$.$ Reducing the need for supplier contracts by fostering informal

agreements

b$.$ Reducing the cost of goods by focusing exclusively on low$-$cost

suppliers

c$.$ Minimising risks in purchasing from selected suppliers by

eliminating the need for due diligence

d$.$ Strengthening long$-$term supplier relationships and improving

supplier performance