6. Not all life depends on energy from sunlight. Microbial life has been found in bedrock more than five kilometers below the surface of the Earth, and bacteria have been found on the deep ocean floor feeding on hydrogen and other gases rising from the interior of the Earth Through vents in the ocean floor.  The statements above, if true, best support which of the following as a conclusion?

A. The location in the bedrock where microbial life was found was not near a system of volcanic vents through which hydrogen and other gases rose from the interior of the Earth.

B. Bacteria are able to exist at eh molten center of the Eargh.

C. A through survey of a planet's surface is insufficient to establish beyond a doubt that the planet contains no life.

D. Life probably exist on Sun-orbiting comets, which are cold agglomerations of space dust and frozen gases.

E. Finding bacterial remains in coal and oil would establish that the bacterial had been feeding on substances that had not been produced from the energy of sunlight.

我甚至弄不清楚这题到底属于support类型还是conclusion类型？请NN们指点迷津！

我甚至弄不清楚这题到底属于support类型还是conclusion类型？请NN们指点迷津！

我来说说我的思路，这个statement就是Not all life depends on energy from

sunlight，下面的例子是对此给出论据，C 说 A through survey of a planet's surface

is insufficient ，为什么insufficient呢，因为没有 SURVEY bedrock more than five

kilometers below the surface of the Earth和deep ocean floor 。