Which of the following is typically present in monocot flowers?

Monadelphous condition of stamens is found in:

How can you differentiate between free central and axile placentation?

The condition where filaments and anthers are fused throughout their entire length is known as:

Among bitter gourd,mustard,brinjal,pumpkin,China rose,lupin,cucumber,sunn hemp,gram,guava,bean,chilli,plum,Petunia,tomato,rose,Withania,potato,onion,Aloe,and tulip,how many plants have hypogynous flowers?

The placentation in $Dianthus$ is of which type?