I know for sure that the largest sediment in the list is the boulder. There are only two options with a boulder as the greatest (A and C). The reason it can’t be A is because the pebble is the second biggest sediment. That is definitely not true. The order of C seems the most correct.
The main function of the endoplasmic reticulum is to transport the newly synthesized proteins over to the Golgi apparatus. The primary role of the Golgi apparatus is to modify the proteins and encase them into vesicles.