Final answer:
To simplify the expression √7 / √11, multiply by the conjugate of the denominator. Hence the correct answer is option C
Step-by-step explanation:
To simplify the expression √7 / √11, we can rationalize the denominator. We do this by multiplying both the numerator and the denominator by √11:
√7 / √11 = (√7 / √11) * (√11 / √11)
Simplifying, we get √77 / 11. Therefore, the answer is c) √77.