(8) One less obvious safety feature of zoos and animal parks being the off-hours security systems that protect the animals against nighttime intruders. Look at the underlined section marked (8). Choose the answer that best corrects this sentence, if appropriate.

A) Correct as is.
B) One less obvious safety feature of zoos and animal parks is the off-hours security systems that protect the animals against nighttime intruders.
C) One less obvious safety features of zoos and animal parks are the off-hours security systems that protected the animals against nighttime intruders.
Eliminate
D) One less obvious safety features of zoos and animal parks were the off-hours security systems that protect the animals against nighttime intruding.