Q: Fact 1: Sporangia produce spores that develop into tiny, heart-shaped gametophytes. Fact 2: Inside each sporangia there are hundreds of spores. Given the two facts above, where do gametophytes come from?

Pick your answer from: 1). seeds; 2). trees; 3). spores; 4). plants; 5). pollen; 6). ferns; 7). fungi; 8). Flowers;
A:
3).