数字之间的比较用greater不用more，数字只有大小没有多少 B错误
未划线部分是单数，they 不正确，排除CD
所以主句是讲G差点灭绝，后面讲它现在的数量是以前DDT时期的5倍。这个语意有转折，不能用缺乏转折连词的伴随状语/独立主格
E：“now with numbers five times greater than” does NOT modify the idea of "surviving a close brush with extinction"; instead, it is a much later situation, far removed from (and in considerable contrast to) the near-extinction. Therefore, a modifier is inappropriate here; a separate clause, written in a different tense (as in the correct answer), is a better solution.