Tight junctions, i. e., places where fluid cannot cross, are found only in
nervous tissue
epithelial tissue
brain tissue
connective tissue
need answer asap !

B) Epithelial tissue

Explanation:

Tight junctions, also known as Zonula Occludens, are zones where two cells join together and form a barrier. These junctions are only present in the epithelial tissue where, due to the tight and reduced space between the cells, they limit the movement and passage of molecules and ions.

For example, they are present in the epidermis (epithelial tissue) where their function is to separate the layers or comparments of the tissue and prevent the passage of solutes and water.