During a Titration the Following Data Were Collected

Multiple Choice

During a titration the following data were collected. A 10. mL portion of an unknown monoprotic acid solution was titrated with 1.0 M NaOH; 40. mL of the base were required to neutralize the sample. What is the molarity of the acid solution

A) 1.0 M
B) 2.0 M
C) 3.0 M
D) 4.0 M
E) None of the above