The correct answer is option 1, which represents a parasitic food chain. In this chain, trees produce fruits, which are then consumed by birds. The birds, in turn, act as hosts for lice and bugs, which depend on the birds for their survival and reproduction.

Option 2 represents a grazing food chain. Grass is consumed by rabbits, which are then eaten by foxes, and then by tigers. This chain shows the flow of energy from plants to herbivores and then to carnivores.

Option 3 represents a detritus food chain. Grass is consumed by grasshoppers, which are eaten by frogs, snakes, and then hawks. This chain shows the decomposition of dead organisms and the consumption of detritus or decaying plant and animal matter.

Option 4 represents an aquatic food chain. Phytoplankton, microscopic organisms that perform photosynthesis, are consumed by zooplankton, which are then eaten by fish, and finally by hawks. This chain shows the transfer of energy between different levels in the aquatic ecosystem.

Overall, option 1 is the only one that represents a parasitic food chain, where one organism benefits at the expense of another.