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Which one of the following statements is correct?

A) Troposphere: is the innermost layer of the Earth which consists of molten iron.

B) Stratosphere: is the third layer of atmosphere and ozone layer is present in this layer.

C) Thermosphere: is the fourth layer of atmosphere and space shuttles can move around in this layer.

D) Mesosphere; is the fifth layer of the atmosphere.

E) None of these