A.I. Explanation:

Option 1: "The Bermuda Triangle has always been shrouded in mystery."

Explanation: The text explicitly states that there are no scientific proofs of any mystery surrounding the Bermuda Triangle, contradicting the idea that it is shrouded in mystery.

Option 2: "The missing ships in the Bermuda Triangle’s domain perhaps were lost to identifiable reasons."

Explanation: While the text mentions some theories about the causes of missing ships, it emphasizes that many of these theories are unfounded and that the actual reasons are often attributed to rational explanations, not identifiable reasons.

Option 3: "The missing ships and planes around the Bermuda Triangle have aroused public curiosity."

Explanation: The text discusses various theories and hypotheses regarding the Bermuda Triangle, indicating that the topic generates significant interest and curiosity among the public, thus supporting this main point.

Option 4: "No one has taken up serious investigation on the mystery of the Bermuda Triangle."

Explanation: The text does not claim that no serious investigations have been conducted; rather, it discusses various theories and the opinions of rationalists, suggesting that there is ongoing discourse about the topic.