To solve this problem, we need to identify the morphological nature of the edible part of a coconut. Let's analyze the options:$\newline \bullet$Option 1: Cotyledon.$\newline$ - Cotyledons are the first leaves that appear from a germinating seed. In coconuts, the cotyledon is not the edible part.$\newline \bullet$Option 2: Endosperm.$\newline$ - The endosperm is the tissue produced inside the seeds of most flowering plants following fertilization.$\newline$ - In coconuts, the edible part is the white, fleshy part known as the coconut meat, which is the solid endosperm.$\newline$ - Therefore, the edible part of the coconut is indeed the endosperm.$\newline \bullet$Option 3: Pericarp.$\newline$ - The pericarp is the part of a fruit formed from the wall of the ripened ovary. In coconuts, it is the hard shell and fibrous husk, not the edible part.$\newline \bullet$Option 4: Perisperm.$\newline$ - Perisperm is a nutritive tissue in some seeds, derived from the nucellus, but it is not present in coconuts.$\newline$Therefore, the correct answer is Option 2: Endosperm.