Choice buttons not showing on Whatsapp

I’m trying to test my flow on Whatsapp and I see that the choice buttons i see on voiceflow don’t appear on Whatsapp.

Am I doing something wrong on my end?

I don’t think buttons exist practically when using Whatsapp. I think thats why they don’t show up on the Voiceflow interface. I had the same question. I could be wrong though.