The correct option is A Liquid endosperm
The seeds are endospermic or albuminous, where the embryo is embedded in the endosperm and nucellus, which the seedling will use upon germination. Nuclear endosperm formation happens where repeated free-nuclear divisions take place, if a cell wall is formed it will form after free-nuclear divisions. Commonly referred to as liquid endosperm. Coconut juice is an example of this.
Thus, the correct answer is option A.