Many tax professionals and advisors recommend adjusting your w-4 allowances so

They advise that you decrease the number of allowances on your W-4. The more allowances that you have, the less taxes you pay during the year, but this can also decrease your end-of-the year refund greatly. The goal is to take as much tax out of each paycheck as needed to get a refund at the end of the year. A person’s job looks at these allowances to determine how much taxes an employee needs to pay each paycheck.

Are you referring to tectonic plates?

I'm not sure but it could be c ( not a 100% sure )