Which row gives the description of continuous and discontinuous variation?
- Acontinuous variation: body mass in animals is an example; discontinuous variation: caused by genes and the environment
- Bcontinuous variation: caused by genes and the environment; discontinuous variation: seed shape in peas is an example
- Ccontinuous variation: caused by genes only; discontinuous variation: ABO blood groups is an example
- Dcontinuous variation: seed colour in peas is an example; discontinuous variation: caused by genes only