I believe D
Explanation:
this is due to the fact that is mainly only talking about bridges and ferry-boats rather then the city itself and it's technology
Answer:
I don't know thanks for the ####
After the first use of 'astronaut'
The compound subject is "Young Juan and his father." Both Jaun and his father are the subjects of the sentence, but because there are two of them it means there is a compound subject.
