Question

in fairfax, the management program is aimed at controlling the number of white - tailed deer on public parklands, estimated at two to five times the optimum.
in this sentence, optimum means:
the quality of unselfish concern for the welfare of others
the appearance of truth; the quality of seeming to be true
stubborn refusal to compromise or change
most favorable conditions or greatest degree possible

Explanation:

The sentence is about controlling the number of deer. "Optimum" in this context refers to the most favorable or ideal level (number of deer). The first option is about altruism, the second about truth - appearance, the third about stubbornness. None of these fit the context of population control. The fourth option "most favorable conditions or greatest degree possible" aligns with the idea of an ideal number (optimum number) of deer.

Answer:

most favorable conditions or greatest degree possible