Answer:
The correct answer is: additional output of labor will eventually decrease as more workers are hired.
Explanation:
The law of diminishing return states that keeping other things constant if we go on increasing the quantity of one input, the marginal returns from that input will go on declining.
In other words, if we go on hiring an input the increase in output because of each additional input employed will go on declining.
For instance, keeping other things constant we go on hiring more and more workers the marginal product of workers or additional output created by each worker will go on declining.