Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
In case of Waldo:
Number of hours they work = 8
Number of units per hour = 7 units
So, Output would be
[tex]8\times 7\\\\=56\ units[/tex]
In case of Emerson:
Number of hours they work = 6 hours
Number of units per work = 10 units
So,Output would be
[tex]10\times 6=60\ units[/tex]
Hence, Emerson’s productivity and output are greater than Waldo’s.
Therefore, Option 'c' is correct.