Chemistry Question... I'm a bit stuck.?

Question

What volume of a 1.0 M LiOH solution do you need to make 0.50 L of a 0.002 M LiOH by dilution?

A) 1 mL of 1.0 M LiOH

B) 10 mL of 1.0 M LiOH

C) 100 mL of 1.0 M LiOH

D) 0.50 L of 1.0 M LiOH

E) 1000 mL of 1.0 M LiOH

______________________________________...

My guess is A

Answer 1

C1V1=C2V2

1.0 M x V1=0.002 M x 0.50 L

V1=0.001 L=1 mL

A) 1 mL of 1.0 M LiOH