The correct answer is option 3, III. Option III represents a stem tissue.

In plants, stem tissues are responsible for providing support and transporting nutrients and water throughout the plant. They are located between the roots and the leaves. Stem tissues can be classified into two main types: primary and secondary.

Primary stem tissues, also known as apical meristems, are responsible for primary growth and are found at the tips of plant shoots and roots. These tissues are involved in the elongation of the stem, therefore contributing to the overall growth of the plant.

Secondary stem tissues, also known as lateral meristems, contribute to secondary growth and are responsible for the thickening of the stem. These tissues include the vascular cambium, which produces secondary xylem and secondary phloem, and the cork cambium, which produces cork cells for bark formation.

In option III, the tissue shown represents a primary stem tissue, which is involved in the growth of the plant. It is important to note that the other options do not represent stem tissues.