When you're turning do you check your mirror and blindspot after you stop?

Question

I have my test soon

Answer 1

I check my blind spot before changing lanes.

Answer 2

check them off an on from time to time before going an when stop so you know if any one has come around you that you were not a wear of

Answer 3

as a truck driver i'm checking my mirrors about every 15sec and in a car about every 30secs, i find the more you know whats around you the easier it is to drive