The syconus (syconium) develops from the inflorescence called
A) Coenanthium
B) Hypanthodium
C) Cyathium
D) Capitulum

Hint: When a cluster of flowers are arranged on the floral axis the type of arrangement is called as inflorescence. Inflorescence is mainly of two types. Racemose and cymose inflorescence. A flower can be classified as hypogynous, perigynous or epigynous depending on the position of three whorls- calyx, corolla, and androecium with respect to the ovary on the receptacle.

Complete answer:
Other than that there is cymose inflorescence, compound inflorescence, hypanthodium inflorescence, verticillaster inflorescence.
Here the fruit syconus develops from inflorescence called hypanthodium inflorescence whereby receptacle is known to develop a hollow cavity and it consists of an apical opening which is protected by the presence of scales.
In cyathium inflorescence, It contains a cup-shaped involucre which contains nectar-secreting glands. A female flower is enclosed within the involucre and the female flowers are surrounded by a number of male flowers.
Capitulum inflorescence is also known by the name head inflorescence whereas Capitulum is also called as Pseudanthium. Here a short dense spike is present over which the flowers are borne directly on a broad, flat peduncle giving the inflorescence the appearance of a single flower.
Coenanthium is another inflorescence which has flat receptacles and margins which are curved up.

So, option B is the correct answer.

Notes:
In racemose inflorescence the arrangement of flowers can be acropetal or centripetal.
Racemose inflorescence is classified into various subtypes which include
1. Raceme
2. Spike
3. Spikelets
4. Catkin
5. Spadix
6. Corymb
7. Umbel
8. Capitulum
Flower is a modified shoot where apical meristem transforms into lateral meristem. Stamen and Pistil are the reproductive organs of flowers. Calyx and Corolla form accessory organs. These are arranged on stalks called thalamus.