I have gone
Present perfect tense is has/have + past participle (of the verb)
Answer:
to help explain why he was so driven to discover the Titanic
Explanation:
According to the excerpt from "Exploring the Titanic", the quote from a reporter is included which says that it must be the dre of every diver to find the Titanic, but it is probably impossible as she is sunk so deep into the sea that no one could possibly find her.
The author most likely include this quotation from the Sea Rovers meeting to help explain why he was so driven to discover the Titanic.
Rhythm is its own term, but rhythm is a function of the meter of a poem