Answer:
Argentinisms (Argentinismos) are words or phrases peculiar to Argentina. In this country the spanish (castilian) has some peculiarities, for example the voseo (the usage of vos instead of tú for the personal pronoun you), words similar to the portuguese and influence from the italian, as well, that make possible its Castilian to be easily distinguishable in the Spanish-speaking world.
Now, from the options listed, the argentinisms are:
-pibe means boy (a young person)
-che means tú (you) in informal speaking
-¿Cómo andás? means How are you? but with the word andas written with an accent.