Which Solution Has the Same Number of Moles of Solute

Multiple Choice

Which solution has the same number of moles of solute A as 50.00 mL of 0.100M solution of NaOH?

A) 25.00 mL of 0.175M solution of A
B) 100.00 mL of 0.0500M solution of A
C) 30.00 mL of 0.145M solution of A
D) 20.00 mL of 0.200M solution of A
E) 50.00 mL of 0.125M solution of A