Hi! The sentence you gave is a complex sentence. For a sentence to be compound, it should contain multiple subjects or predicate. On the other hand, for it to be complex, a subordinate clause must be present.
We can notice that the clause "that were built under the city" is a clause that cannot stand alone thus this will tell us that the sentence is complex.
ANSWER: D. Complex
<span>It promises the scope, purpose, and direction of the essay.
If I wrote an essay on vegetarianism, I would discuss why meat is bad for you. You gotta have a purpose when writing an essay.</span>
Explanation:
for what did you got 99.99 percent in exams..
Some pros would be like you have more things to look at (Like explore) and some cons would be that in some situations the time will be longer to get to one place to another.
Hope this helped !!
