Emma is a trainee solicitor at Harper & Partners in Leeds. She is advising a client who runs a small bakery from leased commercial premises. The client's lease is due to expire in six months and they are worried about having to vacate. Emma explains that Part II of the Landlord and Tenant Act 1954 provides business tenants with security of tenure, giving them the right to remain in occupation and obtain a new lease when their current lease ends.
Which of the following statements best describes the fundamental purpose of Part II of the Landlord and Tenant Act 1954 in relation to business tenancies?