Name the labelled parts A, B, C and D in the diagram given below.

- Stigma (A): The pollen-receiving surface at the pistil's top.
- Style (B): The stalk connecting the stigma to the ovary.
- Ovary (C): The enlarged base containing ovules.
- Ovule (D): The structure within the ovary where fertilization happens and seeds form.
The reasons for excessive generation of wastes are:
(i) Use and throw policy.
(ii) Increased availability of packaged food.
(iii) Increased construction wastes.
(iv) Non-sorting of dry and wet wastes