In order to help the
student expand his/her knowledge I will help answer the question. This in hope
that the student will get a piece of knowledge that will help him/her through
his/her homework or future tests.
The violas which are
slightly lower in range than the violins often provide the harmonies of the
inner voices between high and low. The correct choice is the letter
C. Violas
I hope it helps,
Regards.