The nutrient that is responsible for causing most accidental deaths in children is iron.
The right answer is mitosis.
Mitosis refers to the chromosomal events of eukaryotic cell division. This is a nonsexual / asexual duplication (unlike meiosis).
It also refers to a very particular stage of the eukaryotic cell cycle, called the "cell cycle", which is the stage of duplication of each chromosome of the mother cell and of their equal distribution in each of the two daughter cells.
Mitosis allows the formation of two daughter cells strictly identical genetically to the mother cell.
Assuming both packages are the same size and shape, and neither will be affected by wind resistance, both packages will fall at the gravitaional constant of 9.86 m/s/s, and C) they will both strike the ground at the same time.