Which of these molecules will form a micelle?

[Zipzap]

Homework Statement

Which of the following will form a micelle?
http://imgur.com/VFksg

Homework Equations

The Attempt at a Solution

I know for sure that A, B and C are going to be micelles, since both are amphipathic molecules. They have a clear hydrophilic and hydrophobic part.

As for D, I'm really unsure. I have a feeling that having the benzene ring somehow changes the properties of the molecule in a way that does not make it suitable to be a micelle?

Is this the correct answer? I have to hand this in 6 hours and this is the VERY LAST QUESTION on my report! Thanks to anybody who helps! =D

 

[chemisttree]

LONG tails are a virtue when making micelles. Recheck your answers.