How can we bring back lost nutrient   in   the soil without direct application   of   fertilizer?

Answer

Plants should be getting enough nutrients from your soil, especially if you plant natives, but if you are having issues with plants looking nutrient deficient, it could be a pH problem, or you might need to replenish your soil with compost or an organic fertilizer.

Hope this helps you, like if it does !! :)))

The correct answer is  b)