Pollen tablets are available in the market for:
Supplementing food
The correct option is D.
Explanation of the correct option:
Explanation of the incorrect options:
Option A:
Option B:
Pollen tablets are not used for in vitro fertilization.
Option C:
Pollen tablets are not used for ex-situ conservation.
Final answer: Pollen tablets are available in the market for supplementing food.