Q: You are presented with the quiz "What shape is the organ where fertilization occurs when sperm swim to an egg?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fertilization occurs when sperm swim to an egg inside an archegonium" and "each archegonium is flask shaped". So, what's the best answer to the question?

OPT: (A). a prism; (B). Flask; (C). liquid; (D). rings; (E). Seesaw; (F). porous; (G). organ; (H). gills;
The answer is:
(B).