Under which circumstances would a partnership sourcing approach be used?

Rivalry between suppliers is more likely to be intense in which of the following situations?

Which of the following are recognised organisational culture types? Select THREE

Construct Builders Ltd works very closely with a supplier called Solid Timber Co on house-building projects.
They have a very close working relationship, sharing investment, setting pricing levels, and looking at sharing resources. The two companies also work closely together to set strategic directions and explore new markets for long-term growth. There is no formal contract in place between the two companies. Using the relationship spectrum, what relationship does this scenario best describe?

A software developer is seeking to develop a new fitness trends app. They are looking to create a contract with a fitness expert to give advice on the type of changing fitness trends. What agreement should the app developer aim to achieve?