The answer would be sedimentary rock because sedimentary is made up of small grains and also formed by deposition...
C, some of my close family does logging stuff, and I hear about this all the time.
The error is that four haploid daughter cells are made so it needs to be 4N, because there should be 4 instead of 2
I don't know what you have listed as your answer choices but: this fungus is still alive and able to reproduce.