S11 (n) -i) aa) so much of the total current contributions to any retirement annuity fund or funds made during the year of assessment by any taxpayer as a member of such fund or funds as does not in the case of the taxpayer exceed the greatest of--
A) 15 per cent of an amount equal to the amount remaining after deducting from, or setting off against, the income derived by the taxpayer during the year of assessment (excluding income derived from any retirement funding employment (being the income or part thereof referred to in the definition of "retirement funding employment" in section 1), and any retirement fund lump sum benefit and retirement fund lump sum withdrawal benefit) the deductions or assessed losses admissible against such income under this Act (excluding this paragraph, sections 17A, 18 and 18A and items (c) to (i), inclusive, of paragraph 12(1) of the First Schedule); or
B) the amount, if any, by which the amount of R3 500 exceeds the amount of any deduction to which the taxpayer is entitled under paragraph (k)(i) in respect of the said year; or
C) the amount of R1 750;