Concept:Pangaea, the single supercontinent, was surrounded by a vast global ocean called Panthalassa.
Explanation:According to Wegener’s theory, all continents were once joined as Pangaea around 200 million years ago.
This landmass was encircled by a single mega ocean named Panthalassa, meaning "all water."
Later, Pangaea split into Laurasia in the north and Gondwanaland in the south.
These further broke apart to form today’s continents.
The ocean surrounding Pangaea was not the Tethys, Indian, or Pacific Ocean — those formed later.
Thus, the correct name for the mega ocean is Panthalassa.
Answer:Option B: Panthalassa
