elizabeth creates the following system of equations to determine how many apples, a, and oranges, r, she should buy when she goes to the farmer’s market.

3a + 3r = 6
a − r = 4

elizabeth determines that the solution (a, r) to the system of equations that she created is (3, −1). is her solution correct? in context, is her solution viable?

select one:
a. yes, her solution is correct; yes, her solution is viable in context.
b. yes, her solution is correct; no, her solution is not viable in context.
c. no, her solution is incorrect; yes, her solution is viable in context.
d. no, her solution is incorrect; no, her solution is not viable in context.