Which of the following belongs to the series Gamopetalae in Bentham and Hooker's classification system?

Which of the following are characteristic features of the $Solanaceae$ family?
$(a)$ Flowers are bisexual and actinomorphic
$(b)$ Calyx have five sepals and are united
$(c)$ Androecium have five stamens and are epipetalous
$(d)$ Ovary is inferior
Choose the correct answer from the options given below:

Parachute mechanism is found in

Which family contains oil-yielding plants?

Diadelphous stamens are the characteristic features of

Bicarpellary,syncarpous,unilocular ovary with basal placentation occurs in