Answer:
I believe its B.
Explanation:
3, 5, and 6 seem to be the major details. The other details are unnecessary, they just help the paragraph flow better.
Being disciplined at the workplace helps us to complete all the important tasks and responsibilities well on time. And when they are completed on time, stress levels don't arise at all. Plus it helps us elevate our productivity levels and quality parameters as we have more time in hand.