Self-fertilization is seen in:

Which of the following statements is applicable to all flowering plants?

Which of the following statement$(s)$ is/are correct for cleistogamous flowers?
$(a)$ They have exposed anthers and stigma
$(b)$ They produce assured seed set
$(c)$ They need pollinators for pollination
$(d)$ Variations in traits are not seen in next generation

Match the items in Column-$I$ with those in Column-$II$ and select the correct option:

Column-$I$	Column-$II$
$(1)$ Pollination by water	$(a)$ Grass
$(2)$ Pollination by wind	$(b)$ Free-nuclear endosperm
$(3)$ Coconut water	$(c)$ Guava
$(4)$ Fleshy fruit	$(d)$ Hydrilla

Identify the odd one out.

Select the option that represents the correct statement.