As Abreu says, "A child's physical poverty is overcome by the spiritual richness that music provides." How best to set up the quotation?
1) A child's physical poverty is overcome by the spiritual richness that music provides, as Abreu says.
2) Abreu says that a child's physical poverty is overcome by the spiritual richness that music provides.
3) The spiritual richness that music provides overcomes a child's physical poverty, as Abreu says.
4) According to Abreu, a child's physical poverty is overcome by the spiritual richness that music provides.