Because humans see in 2D, while we live in 3D. D = dimension. Our eyes only perceive a flat 2 dimensional image in front of us instead of seeing all 360 degrees around an object at once. This is why we can only see one side of the moon. The sun also decides how much of the moon we see depending on how much light reaches the moon
A worker's success in contributing to the common good is <span>A. measured by how well she or he does the job.
I believe this is the best option given that it is nonbiased and relatively objective. By taking a look at the results that a particular employee has achieved, the supervisor will know whether or not they were successful and contributed to the company.</span>
They hoped to prevent the spread of communism