Sucker which is subaerial stem modification for vegetative propagation is seen in

Modification of stem for reproduction is found in.

In gourds, axillary buds develop spirally coiled structures called

Assertion : Many plants are propagated vegetatively even though they bear seeds.
Reason : Potatoes multiply by tubers, apple by cutting etc.

Identify the correct set of statements :

$(a)$ The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea

$(b)$ Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin

$(c)$ Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves

$(d)$Rhizophora shows vertically upward growing roots that help to get oxygen for respiration

$(e)$ Subaerially growing stems in grasses and strawberry help in vegetative propagation

Choose the correct answer from the options given below:

Stolon is