Which sample has higher evenness in its species distribution?
Group of answer choices
Sample C: 30% of individuals belong to species X, and 70% belong to species Y.
Sample B: 50% of individuals belong to species X, and 50% belong to species Y.
Sample D: 90% of individuals belong to species X, and 10% belong to species Y.
Sample A: 80% of individuals belong to species X, and 20% belong to species Y.