Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

Aestivation of corolla in Pea is

Consider the following statements

$I$.In racemose inflorescence, the flowers are brone in a basipetal order:

$II$.Epigynous flowers are seen in rose plant.  $III$.In brinjal, the ovary is superior:

Of these statements

Polydelphous stamen found in ………….

Flowers and lateral branches arise from the