Stem thorns help in

In Onion, the swollen underground structure is

Name the body part modified for food storage in the following :

$(a)$ Carrot ........

$(b)$ Colocasia ........

$(c)$ Sweet potato

$(d)$ Asparagus .

$(e)$ Radish

$(f)$ Potato

$(g)$ Dahlia

$(h)$ Turmeric

$(i)$ Gladiolus

$(j)$ Ginger

$(k)$ Portulaca $........$

Corm is

Which one of the following is an example for sub-aerial modification of stem?

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: