Answer:
The correct answer is:
Abbreviations written after individuals’ names are set off by commas (c.)
Explanation:
Abbreviations such as M.D, PhD, M.A, D.D.S, etc, used after the names of individuals are set off with a comma, and the comma is used both before and after the name of the individual. In this example; 'Jeff Doolittle, PhD, and Dorothy Watts, CPA, were both at the dinner last night', the rule was applied correctly because the comma was used before and after the abbreviations 'PhD' and 'CPA'. If the comma is not used before the abbreviation following a name, then it is not used after the abbreviation. For example: 'Mr. Smith Moody M.D. is my family physician' is correctly used, because no comma is used before the abbreviation, hence it is not also used after the abbreviation. It would be wrong to write it like this: Mr. Smith Moody M.D., is my family physician' .
There are other rules of using a comma, I suggest you check them up for wholesome understanding.
