A Stock Solution Of $\mathrm { HNO } _ { 3 }$

A stock solution of $\mathrm { HNO } _ { 3 }$ is prepared and found to contain 13.7 mol L^-1 of $\mathrm { HNO } _ { 3 }$ .If 25.0 mL of the stock solution is diluted to a final volume of 0.500 L,what is the concentration of the diluted solution?

A) 1.46 mol L^-1
B) 274 mol L^-1
C) 0.274 mol L^-1
D) 685 mol L^-1
E) 0.685 mol L^-1