Apoplast/symplast pathway is a system of interconnected protoplast.

Explanation

### Step-by-Step Solution:

1. **Understanding the Terms**:
- The **Apoplast pathway** refers to the movement of water and solutes through the cell walls and intercellular spaces without crossing any cell membranes.
- The **Symplast pathway** involves the movement of water through the cytoplasm of cells, which are interconnected by structures called plasmodesmata.

2. **Identifying the System of Interconnected Protoplast**:
- Protoplasts are the living parts of the cell, including the cytoplasm and the plasma membrane. The symplast pathway is characterized by the interconnected protoplasts of adjacent cells.
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