Please help. Perform the indicated operation and express your answer in simplest radical form.

Sorry....your question doesn't make any sense to me....did you leave something out????

No i didn't. 

That's how I was given it, sorrry.

Is this ok.?

Thanks but those a, b, c, d are my choices. One of those is the answer.

Nothing of a, b, c, d is the answer.

Okay, maybe there is a mistake with the question. 

Thanks for helping you all!

THIS IS YOUR CORRECT ANSWER:2^(1/4)=   ∜2

I took a guess and got it correct! "b" was the answer.

Let me just understand what you are trying to obtain: do you want the answer in "simplest radical form" to this expression: 3r.root of 8 DIVIDED by the 4th. root of 8? If that's what you are trying to get, the answer I gave you is the correct answer. It can't "b", because if you calculate it on a calculator, you get: 12 X 2.828427(or square root of 8)=33.941125.....etc.

Here is your answer step by step:

Simplify the following:
(8^(1/3))/(8^(1/4))
Simplify radicals.
8^(1/4)  =  (2^3)^(1/4):
(8^(1/3))/(2^(3/4))
Simplify radicals.
8^(1/3)  =  (2^3)^(1/3)  =  2:
2/2^(3/4)
Multiply numerator and denominator of 2/2^(3/4) by 2^(1/4).
Rationalize the denominator. 2/2^(3/4)  =  2/2^(3/4)×(2^(1/4))/(2^(1/4))  =  (2 2^(1/4))/(2):
(2 2^(1/4))/(2)
Cancel common terms in the numerator and denominator of (2 2^(1/4))/(2).
(2 2^(1/4))/(2) = 2/2×2^(1/4) = 2^(1/4):
Answer: 
2^(1/4)