Enough water is added to 10.5 grams of NaOH to produce 200 mL of solution. What is the mass/volume percent of the solution?

A)0.516% (m/V)

B)10.5% (m/V)

C)1.25% (m/V)

D)2.75% (m/V)

E)5.25 % (m/V)