Alpine plants show

The sugarcane plant has

Which type of placentation is formed in plants having vexillary aestivation?

The typical floral formula for the family Gramineae (Poaceae) is:

In a monocarpellary ovary with a single ovule, the placentation is . . . . . . .

Select the correct option for the following statements:
$(i)$ Monocots possess a large shield-shaped cotyledon. It is called the scutellum.
$(ii)$ In $Ocimum$ (Tulsi),the flowers are zygomorphic (irregular).