A 10.0 mL of a 1.5 M solution of hydrochloric acid is mixed with 100.0 mg of magnesium metal to generate hydrogen gas and aqueous magnesium chloride. What is the concentration of magnesium chloride that is generated when the reaction is completed? Assume that the volume of magnesium is negligible.

a. 0.15 M

b. 1.5 M

c. 0.75 M

d. 0.30 M