I am using the D&D Beyond character builder to create a ranger. If I pick humanoids, it does not list half-elves or half-orc in the dropdown, but it does list humans, elves and orcs:

[![Favored Enemy Humanoids dropdown on D&D Beyond](https://i.stack.imgur.com/iuHfKm.png)](https://i.stack.imgur.com/iuHfKm.png)

I see three possibilities:

1. I can not choose either one;
2. I can get half-elf if I pick human or elf or I can get half-orc if I pick human or orc;
3. They forgot to include them.

I am in a group that is new to 5th and we are only using the *Player's Handbook*. I haven't seen anything in that book that covers this.