What does SAP SuccessFactors recommend to create new and custom associations between Foundation Objects? Please choose the correct answer.

What does SAP SuccessFactors recommend to create new and custom associations between Foundation Objects? Please choose the correct answer.
A . All new and custom associations should be built as One to One.
B . All new and custom associations should be built between an XML FO and another XML F
D . All new and custom associations should be built between an MDF FO and another MDF F
F . All new and custom associations should be built as One to Many.

Answer: D