Do you have any option choices? If not I would think it's the harp. (:
Our scent can determine if it smells good or bad, and also our sight can. For example, we may see rotten cheese with our sight and know it smells bad.
-hope this helped!
I don’t knowwwwwwwwwwwwwwww
Mandarin, Arabic, Japanese - I would say languages with more complicated characters are harder..