Which of the following statements is true about capital gains in Australia? a) The effective capital gain tax is usually very high O b) Australian investors with higher personal tax rates will tend to prefer dividends over capital gains more than Australians with lower personal tax rates c) Non-resident Australians enjoy a higher discount on their capital gain tax than Australian residents, as non-resident Australians' dividends are double taxed. d) All Australian residents enjoy a discount of 50% on their capital gain every time they sell stock e) None of the above