Final answer:
The correct statement regarding plants X and Y is that all the flowers of Y will give rise to seeds after fertilisation.
Step-by-step explanation:
The correct statement regarding plants X and Y is option (C): In normal conditions, all the flowers of Y will give rise to seeds after fertilisation. This is because the flowers of plant Y contain both stamens and pistil, which are the male and female reproductive structures respectively. In order for seed setting to occur, fertilisation needs to take place, which requires the transfer of pollen from stamen to pistil. Since plant Y has both stamens and pistil, it is capable of self-fertilisation and all its flowers will give rise to seeds.
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