Della is a resident taxpayer who carries on a gardening business and she expects to generate a taxable income of $270,000 from that business in the year ended 30 June 2021. She is a small business entity. In addition she has capital losses of $30,000 carried forward from the 2020 income year. Based on this information which one of the following actions if they occurred prior to 30 June 2021 will increase her taxable income in the year ended 30 June 2021? O a. Claim a tax offset for her private health insurance. O b. Dispose of a capital gains tax asset where a capital gain of $27,000 is derived. OC. Make a prepayment of 6 months for insurance premiums for her business. O d. Dispose of a depreciating asset used 100% in his business for $12,000 where the item's adjustable value is $9,000. Oe. Defer raising a tax invoice for landscaping fees until after 30 June 2021.