Short Question on Full Round attack

[divby0]

Hey everonye,

what can this creature do as a full round attack?

Melee 1 bite +9 (2d6+7), 2 claw +9 (1d8+7 plus paralytic nails)

can it do both bite and 2 claws or either?

as a standart action it can either do a melee or 1 claw.

I am a little confused as sometimes it states and / or between the two attacks

thanks you.

[Gorbacz]

If you do a standard action, you make a single attack out of your array of possible attacks.

If you do a full attack action, you make all attacks on your statblock.

As usual, there are exceptions (eg. pounce), but most of the time it goes like that.