In higher plants, continuity of cytoplasm from one cell to its neighboring cells is established through the

a) In apoplast pathway water moves exclusively through the cell wall without crossing any membranes. It is the continuous system of cell walls and intercellular air spaces in plant tissues.
b) Chloroplasts are the green coloured plastids. These are protoplasmic organelles present only in the green cells of the plants.
c) Leucoplasts are the colourless plastids which are meant for storage purposes.
d) In the symplast pathway, water travels from one cell to the next via plasmodesmata. The symplast consists of an entire network of cell cytoplasm interconnected by plasmodesmata.
Hence, continuity of cytoplasm from one cell to its neighbouring cells is established through the symplast.