Question

Plasmodesmata are found in
(A) cyanobacteria
(B) plants
(C) invertebrates
(D) vertebrates

Answer 1

plasmodesmata are found in only plants and algal cells hence your answer is plants.

Answer 2

Plasmodesmata (singular form: plasmodesma) are intercellular organelles found only in plant and algal cells. (The animal cell "equivalent" is called the gap junction.) The plasmodesmata consist of pores, or channels, lying between individual plant cells, and connect the symplastic space in the plant