The correct option is
A A(iii), B(v), C(i), D(ii), E(iv)
(A) Raceme: It is a simple racemose inflorescence in which bisexual and pedicellate (stalked) flowers are arranged acropetally on the inflorescence axis (peduncle). e.g. Radish.
(B) Spike: It is a simple racemose inflorescence in which bisexual and sessile (without stalk) flowers are arranged acropetally on the inflorescence axis (peduncle). e.g. Amaranthus.
(C) Spikelet: It is a small special spike which is a part of branched axis (peduncle) in compound racemose inflorescence e.g. Grasses.
(D) Catkin: It a simple racemose inflorescence in which unisexual and sessile (without stalk) flowers are arranged acropetally in the leaf axis of a pendulous (hanging) spike. e.g. Acalypha.
(E) Spadix: It is a variation of spike in which the fleshy axis contains female flowers towards the base, sterile flowers in middle and male flowers towards the tip. This is covered by a bright colored bract called a spathe. e.g. Musa (Banana).