Answer:
C) A plant bending towards the sunlight
Step-by-step explanation:
A) is incorrect because both the lobster and the seaweed are organisms! Likewise, so are B) and D). D) might seem a little tricky, but ultimately the squirrel is interacting with the tree by living inside it.
A plant bending towards the sunlight, however, is an organism having a response to a factor in its environment.