Humans have been damaging the environment for centuries by overcutting trees and farming too intensively,
and though some protective measures, like the establishment of national forests and wildlife sanctuaries, having been taken decades ago, great increases in population and in the intensity of industrialization are causing a worldwide ecological crisis.
A. though some protective measures, like the establishment of national forests and wildlife sanctuaries, having been taken decades ago, great increases in population
B. though some protective measures, such as the establishment of national forests and wildlife sanctuaries, were taken decades ago, great increases in population
C. though some protective measures, such as establishing national forests and wildlife sanctuaries having been taken decades ago, great population increases
D. with some protective measures, like establishing national forests and wildlife sanctuaries that were taken decades ago, great increases in population
E. with some protective measures, such as the establishment of national forests and wildlife sanctuaries, having been taken decades ago, great population increases
Ans: B
不敢相信我竟然選C

舉例要用such as不用like 刪AD
我覺得C選項的"establishing national forests and wildlife sanctuaries having been..."不對
剩下B和E 我該怎麼選擇呢? E選項的"with"不好嗎?