You get to breath clean air
there are no bad smells
1.) The answer should be B. Seated with legs crossed.
2.) In yoga people worry about “breath control” so I’d say it would be D. Equal breaths.
I’m not one for yoga, I looked up this info. So it might be wrong.
Gardening would best fit on the moderate activity on the physical activity pyramid even though it does not burn a lot of calories.