Mark the incorrect match

The flowers are Zygomorphic in 

$(a)$ Mustard   $(b)$ Gulmohar    $(c)$ Cassia    $(d)$ Datura      $(e)$ Chilly

Choose the correct answer from the options given below:

Perianth is the condition in which

Describe the various types of placentations found in flowering plants.

Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, Withania, potato, onion, aloe and tulip how many plants have hypogynous flower?

Define the following terms:

 Actinomorphic