Ngwenya (Pty) Ltd advertises its products on television. It pays a premium once a year. On 1 July 2022 it paid R800 000 for advertisements that will be aired until 30 June 2023. How much is deductible by Ngwenya (Pty) Ltd in determining it's taxable income for the year of assessment ended 28 February 2023. a. R100 000 b. R800000 c. R533 333 d. R nil