What path do sperm cells take to get to egg cells during fertilization of a flowering plant?

question 27 options:

pollen lands on the stigma; pollen grain grows a tube down the style to an ovule; and fertilization occurs.

pollen lands on an anther; grows a tube to the filament; and fertilization occurs.

pollen lands on the stigma and fertilization of the stigma occurs.

pollen lands on a newly formed seed and fertilization occurs.