Ok so, if I'm being honest, I had to search up pictures of Petroglyphs, cuneiform and drawing symbols because I only learned about Hieroglyphs. But I still wanted to help out. I would say the answer is Hieroglyphs because they look like words more. If not Hieroglyphs then maybe cave drawing. Hope it helped. I tried my best. If it didn't, sorry.
Hieroglyphs because words and sentences can be formed with hieroglyphs (the different characters can represent different words and/or letters) which is very close to writing.
