Which of the following sex form observed in cucumber?

Solution(By Examveda Team)

All these three sex from the following options, i.e. Monoecious, Gynoeciuos, and Trimonoeciuos can be observed in cucumber.
In a monoecious cucumber plant, male flowers arise in early or lower nodes, followed by a mixture of male and female flowers at the middle nodes and ending with female flowers only in the higher nodes.
Gynoecious varieties produce only female flowers and have a more concentrated period of fruit production. There are also parthenocarpic varieties that do not need to be pollinated to produce fruit.
In cucumber, the bisexual flowers occurring in trimonoecious plants have superior ovaries (hypogynous, the normal bisexual and female flowers are epigynous), derived as a modification of staminate flowers.