I-129F - Question about beneficiary's name

[Toastneb 0]

I'm filling out my fiancé's information (he's Indian). His given name on the passport is A B C D.

 

A B is his father's name. C is his name. D is his family name/surname. He does not have a middle name.

 

In part 2 of the form, the order in which the name of the beneficiary is as follows: 

1.a. Family Name (Last Name)

1.b. Given Name (First Name)

1.c. Middle Name

 

How do I go about filling in his name in this section? His entire name does not fit under "Given Name." Any advice on this matter would be greatly appreciated.

 

Thank you in advance.

Edited March 5 by Toastneb