You Have a 0

You have a 0.1 M solution of ATP and take 6.25 mL of it to add to a 25 mL volumetric flask, along with some other solutions, which is then brought up to volume to make a stock solution. You then add 1 mL of that stock solution to a reaction bath that has a total final volume, including the 1 mL of stock solution, of 5 mL. W hat is the ATP concentration in the final reaction bath?

A) 0.025 M
B) 0.05 M
C) 0.02 M
D) 0.005 M
E) Cannot be calculated from the information given.