(1) In 1872 a man named Charles Crocker first had the idea to build a bridge over the strait. (2) It was not until 1919 that Michael O'Shaughnessy asked some engineers about the possibility of building the bridge. (3) Joseph Baermann Strauss was a
fantastic engineer. (4) He said he could build a bridge for $25 to $30 million. (5) Other engineers were not so sure.
In the passage, which sentence gives an opinion?

A)
Sentence 1
B)
Sentence 2
0
Sentence 3
D)
Sentence 4