Slie is 77 years old. Her taxable income for the year is R391 000. YOU ARE REQUIRED to calculate Slie's normal tax liability for the current year of assessment. Select one: a. R69050 b. R57 053 c. R60 050 d. R85475 Slie is 77 years old. Her taxable income for the year is R391 000. YOU ARE REQUIRED to calculate Slie's normal tax liability for the current year of assessment. Select one: a. R69050 b. R57 053 c. R60 050 d. R85475