What letter on the map represents the barrier that protect rome from invasion?
a)
b)
c)
eliminate
d)

B as attacking forces have to use boats to gain access

b

Explanation:

i just took it and i got it incorrect because i put a.

one time i was looking at my neighbors screen door to see if the door was open i was squinting like a fool for 10 minutes before realizing he was starring back i then died from embarrassment and am now typing this from the ghost world