For what reason is Titanic believed to be the safest ship ever?

A.Titanic has advanced safety features such as watertight compartments and remotely activated watertight doors.

B.Titanic has enough life boats for every passenger on board.

C.Titanic is said to be the most luxurious one ever floating in the ocean.

D.Titanic is equipped with three main engines—two reciprocating four-cylinder, triple-expansion steam engines.

正确答案：Titanic has advanced safety features such as watertight compartments and remotely activated watertight doors.