男仔校網 邊個較好 (安全): 11, 12, 14, 41

Hello everyone. I have 2 boys, would like to find a good (safe school net) for my boys. Which school net is more preferred: 11, 12, 14, 41
Targeting B1 school, no govt school back up. Any school net is safe even I fail in my first choice?

Super thanks for your great help