The correct option is
D Poisonous fungi
There are two type of fungi, edible and non-edible types. There are certain fungi which are not consumed because of the production of toxins like
amatoxins and phallotoxins. The fungi which produce these toxins are referred as poisonous fungi or toadstools. The consumption of these fungi results in death due to the activity of the toxins.Thus, the correct answer is option C.