Measuring its costs and benefits in terms of energy spent and/or gained, predation:

a. results in a gain for one individual and neither a gain nor a loss for the other.
b. results in a gain for both individuals.
c. results in a gain for one individual and a loss for the other.
d. is a lose-lose interaction.
e. none of the answer options is correct.

The correct answer is C. results in a gain for one individual and a loss for the other.

Explanation:

Predation results in one individual gaining energy, the predator, and as the principle of energy conservation says, therefore, the prey represents a loss of energy.  

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.