Long Term Task Seeding

I always put the task seeding which I found that there are 3 ways to do this, since I do not know what is the different between those 3.

My question is which one more effective ?   

1.  Leave each task active (orange arrow up).

2. Tick the enable long-term seeding in the option menu.

3. Tick the bypass task seeding rules (task always active in Advanced tab) in individual task.

Do I need to do all of the above to maintain Long Term Seeding ? 

PF

In addition

I do not tick the task seeding rules (auto stop task when satisfying all the following conditions) in option/task/bitorrent menu.

Quite confusing.

PF

Long-term seeding is independent of bittorrent seeding.

Long-term seeding will work when #2 and #3 are both enabled, while #1 is not necessary.