How much 25% stock solution and distilled water will you need to make 1 L of a 1:400 solution?

10 mL of the 25% solution and 990 mL of water

990 mL of the 25% solution and 10 mL of water

100 mL of the 25% solution and 900 mL of water

900 mL of the 25% solution and 10 mL of water