Which of the following resident taxpayers would most likely be able to claim a deduction under s8-1 ITAA for the costs of their self-education?

		A dental nurse undertaking a Bachelor of Dentistry degree to qualify as a dentist.
		A childcare worker undertaking a Bachelor of Teaching degree to qualify to teach primary school children.
		A marketing executive undertaking a Master of Marketing degree to enhance their prospects of promotion with their employer.
		A factory machine operator undertaking a University Engineering degree.
		All of the above are deductible self-education.