Problem of interpretation

"To do so, the Pyrrhonist will turn to three of the so-called Five Modes of Agrippa, according to which, in trying to justify any claim, one falls into either infinite regress or circular reasoning, or makes an unjustified assertion."

Is it clear that "according to which" refers only to the three modes in question, or does it seem that it refers to the five modes? If the latter is the case, should I say something like this?:

"To do so, the Pyrrhonist will turn to three of the so-called Five Modes of Agrippa. According to these three modes, in trying to justify any claim, one falls into either infinite regress or circular reasoning, or makes an unjustified assertion."

Thanks,

Sextus