Which of the following sentence correctly uses punctuation's?
China already has three profound interest in Central Asia, in securing supplies of energy, in the land route to Europe, and in ensuring stability in its own.
China already has three profound interests in Central Asia : in securing supplies of energy, in the land route to Europe and, in ensuring stability in its own.
China already has three profound interests in Central Asia - in securing supplies of energy; in the land route to Europe and, in ensuring stability in its own.
China already has three profound interests in Central Asia: in securing supplies of energy: in the land route to Europe; and in ensuring stability in its own.