Hey there!
There's a special rule in Spanish when a noun ends with a z. When you make it plural, it does not end with a traditional -os or -as. It ends with -ces. For example, pez turns to peces, and so on.
Therefore, your answer would be "Los lapices".
Hope this helps!
Esta bufanda es barata. Aquella bufanda es mas barata...
Hope this helps....!
I think the correct answer is the a.Amable