Which expression has a value closest to 1? (Use 3.14 as the value of [tex]\pi[/tex].)
A. [tex]\frac{7\pi }{\sqrt{10} }[/tex]
B. [tex]\sqrt{75} -\sqrt{74}[/tex]
C. [tex]\sqrt{37} -\sqrt{26}[/tex]
D. [tex]\frac{3\sqrt{5} -\sqrt{20} }{\sqrt{2} }[/tex]