‘Cobra’ is a high-level, objectoriented programming language usedfor general programming purposes,‘Python’ is a high-level general purposeprogramming language , ‘Squirrel’ is aprogramming language similar to ‘Lua’,but uses a ‘C’ like syntax and finally‘Java’ is a popular programminglanguage created in 1995 and is beingused for mobile applications. Hence allfour being computer languages, (D) isthe correct option.