answer the question

Kevin operates his car cleaning business from premises he rents from Alicia, who owns several commercial premises. In April 2021, Kevin is injured in a car crash and unable to work at his cleaning business. Around this time there is a severe downturn in the economy, so Alicia is keen to keep all her tenants. Kevin is considering quitting his lease and relocating to cheaper premises when his health improves. Rather than lose her most valuable tenant at this time, Alicia promises Kevin that she will reduce the rent to $800 per month (instead of $1,200) for the nal six months of the lease contract. This would mean instead of paying $7,200; Kevin only has to pay $4,800 for the final six months of the lease contract. Despite his best efforts to run his business, Kevin's health has turned for the worse and decides to close his business and terminate the lease. Alicia claims that Kevin owes her $2,400 in unpaid rent and demands the amount be paid immediately! 4 marks Using relevant statute or case law, advise if there a binding contract or promise between Kevin and Alicia to accept the $800 per month for the final six months of the lease? NOTE: TO ACHIEVE THE MAXIMUM MARKS, MAKE SURE TO CITE RELEVANT CASE LAW AND EXPLAIN WHY THE CASE LAW IS RELEVANT