Xavier wrote this passage using hyphens and dashes. What is the best suggestion for how he should revise this sentence?
The turn-of-the-century architect had designed hundreds of buildings around the metropolitan Dallas area-which surprised many of his contemporaries, since he had
received no academic-training in architecture or engineering.

Add a second dash after "contemporaries" to complete the pairing of dashes.

Add an en-dash after "hundreds" to indicate the number of buildings.

Remove the hyphens from "turn-of-the-century."

Remove the hyphen from "academic-training."