Question

Why is it inappropriate to use like, y'know, and um as space-fillers in a presentation (Choose the best answer.)? They are not useful and do not add to the conversation. They make you sound too informal. They are unprofessional in a business setting. Only teenagers use them. They make you sound too young. They are fine to use in moderation.

Answer 1

Using those type of words is,  they are used as fillers so you would probably much rather gather you're thoughts in a professional setting than saying y'know or um and might want to limit the word like.  so my opinion it would be that "they are unprofessional in a business setting