Answer: Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Number of pallets worker moved in a warehouse = 108
Number of hours it takes to do so = 4.5
Rate at which they require to move one pallet is given by

Now, if the worker will be off the clock in 2 hours ,
So, number of pallets he can move before quitting time is given by

Hence, Option 'B' is correct.