The correct options are
A If a pond contains rocks inside it, it should be considered as a part of the lithosphere.
B If a pond does not contain rocks, it should be considered as a part of the hydrosphere.
C If fish can breathe inside a pond it should be considered a part of the atmosphere.
Places where living beings survive are considered as part of the biosphere. Thus, a pond having living creatures cannot be considered as a part of lithosphere, atmosphere or hydrosphere alone.