The correct option is C 1-C, 2-D, 3-A, 4-B
The complete flower has 4 whorls:
1. (DACIMUNROE) ANDROECIUM is a whorl consisting of stamens. It is a male reproductive part of a flower. It consists of anther and filament. Anther contains pollen sacs which contains pollen grains.
2. (MUCIONYGE) GYNOECIUM is a whorl consisting of carpels. It is a female reproductive part of a flower. It consists of flat bead like stigma, tube like structure called style and a bulb like structure called ovary which contains ovules.
3. (ALXYC) CALYX is a whorl of sepals. Sepals are the thin leaf like structures just above the thalamus.
4. (ALORLOC) COROLLA is a whorl of petals. Petals are the colourful structures present on a flower.