Correct option (d) persistent nucellus
Explanation :
Perisperm is persisting nucellus in the seeds. Generally till maturity, whole of the nucellus is consumed in seeds but in some cases. a thin layer of nucellus is present in mature seeds, which is called perisperm. Seeds having perisperm are called perispermic seeds e.g., Mirabilis jalapa, Ex-(Nymphaea, Zingiber) etc.
