Solution:Concept- In the pea terminal, pamphlets are adjusted into ringlets that's a slim, wiry and coiled structure made for the back known as leaf tendrils.
The leaf tendrils are the modifications of the leaf or leaflet that emerge from leaf nodes and help to support the stem. The slender and spirally coiled tendrils develop from the axillary bud. The part of a leaf gets modified into a tendril. In cucumber, the assistant bud of the stem gets adjusted to make stem tendrils. In grapevine, apical buds alter to make stem rings.
Therefore the leaf tendrils are found in pea.
Hence, the correct answer is option 1.