How do sphingophospholipids differ from glycerophospholipids in terms of their molecular platforms?

Sphingophospholipids have a glycerol backbone, while glycerophospholipids have a sphingosine backbone.

Sphingophospholipids have a sphingosine backbone, while glycerophospholipids have a glycerol backbone.

Both have glycerol backbones but differ in head groups.

Both have sphingosine backbones but differ in fatty acid chains.