Answer: Option 'B' is correct.
Explanation:
Your anniversary is usually when you are given a job review and possible increase in pay.
As in a job, job review is given at the time of anniversary, then on the basis of their performance there may be increase in pay.
So, Meaning of anniversary in a official way is when work performance of an individual is discussed and if there is good record , there is an increment.
Hence, Option 'B' is correct.