What do the examples below from the two different languages, Tabla and Sentani $($spoken in Papua New Guinea$),$ suggest about the languages' ancestries?

$\backslash$table$[[$Tabla$,$Sentani,$($English translation$)],[$p$$ra$,$f$$la$,$'arrow'$],[$saa$,$haa,'blood'$],[$katu$,$kahu,'cheek'$],[$peko$,$peyo,'bad'$],[$waku$,$wayu,'drum'$],[$nar$,$nal$,$'nest'$],[$opo$,$obo,'pig'$]]$

$$ It's possible that they were once the same language.

The languages likely come from the same language family and are related.

The languages coincidentally have similar sounding words for the same concepts.

Both $($a$)$ and $($b$)$