Athletic games are held in honour of anchises.
A staff meeting to introduce new employees would be an appropriate setting to use jargon. Jargon is language familiar to a certain profession and so in this case it will allow the new employee to recognize the jargon.
It's D your choice as commas, split an explanation while the conjunction 'but' links two sentences. No need to separate them by using a semicolon.
D because it supports the claim.