Question 1
What is pollination?
The right answer is the one marked above.
The deposition of mature pollen on the stigma of a flower of the same species. It is transport, and it is only the first half of getting a male gamete to a female one.
The other three all come after pollination, in order: the pollen tube growing down the style, fertilisation, and then the seeds. Confusing pollination with fertilisation is the usual slip.