The combination of a string quartet is?

A. 2 violins, 1 cello and 1 double bass
B. 2 violins, 1 viola and 1 cello
C. 2 violins, 1 viola and 1 double bass
D. 1 violins, 2 violas and 1 cello

Correct Answer: Option B

B. 2 violins, 1 viola and 1 cello