Which of these are correct? Please explain?

1.) Stupid people without knowledge about what they are talking about tend to judge things uncritically. 2.) Stupid people, without knowledge about what they are talking about tend to judge things uncritically. 3.) Stupid people, without knowledge about what they are talking about, tend to judge things... show more 1.) Stupid people without knowledge about what they are talking about tend to judge things uncritically.

2.) Stupid people, without knowledge about what they are talking about tend to judge things uncritically.

3.) Stupid people, without knowledge about what they are talking about, tend to judge things uncritically.

I placed commas on 2 and 3.
6 answers 6