grammar - What is the correct spelling for "These are known as the three “V’s”: veracity, voraciousness and vivacity."

What is the correct spelling and grammar for the following sentence?

These are known as the three "V's": veracity, voraciousness and

vivacity.

In particular, should the "V" be capitalized, should it have an apostrophe, should there be quotes around V's and are there any other mistakes in the sentence?

Answer

For some reason I can't get this graph to display the apostophized r's and R's here, but if you click on this chart to follow the link (where you also have to click "Search books" on that page)...

...you'll see that the capitalised versions have always been more common, but over recent decades the apostophized version the three R's has gained currency to the point where it's (just) become the most common format.

I see no reason why OP's three V's should be any different. Personally I'd never enclose the whole thing in double quotes - it doesn't add anything to the meaning, and it's positively undesirable in terms of legibility.