Rank the Following from Most General to Most Specific: 1

Rank the following from most general to most specific: 1. gametic isolation
2) reproductive isolating mechanism
3) sperm-egg incompatibility in sea urchins
4) prezygotic isolating mechanism

A) 2, 3, 1, 4
B) 2, 4, 1, 3
C) 4, 1, 2, 3
D) 4, 2, 1, 3
E) 2, 1, 4, 3