Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils: $(a)$ Cucumber,$(b)$ Peas,$(c)$ Pumpkins,$(d)$ Grapevine,$(e)$ Watermelon.

(N/A) Cucumber ($Cucumis$ $sativus$): Modification of axillary bud into stem tendril.
$(b)$ Peas ($Pisum$ $sativum$): Modification of leaves into tendril for climbing.
$(c)$ Pumpkins ($Cucurbita$ $pepo$): Modification of axillary bud into stem tendril.
$(d)$ Grapevine ($Vitis$ $vinifera$): Modification of axillary bud into stem tendril.
$(e)$ Watermelon ($Citrullus$ $lanatus$): Modification of axillary bud into stem tendril.