GMAT Sentence Correction (SC) | Re: For the best extraction of the flavor of saffron threads, it

Option B - Incorrect

The initial modifier "to best extract their flavor" - should refer to a person. Here, it refers to "saffron threads". Illogical.
"after pounding with a mortar and pestle" - After pounding what? Not clear.

Hi Experts,CrackVerbalGMAT ,GMATNinja ,

Could you explain why the initial modifier in B cannot act as a verb modifier for the clause. I mean we can write B as - Saffron threads should be soaked in liquid after pounding with mortar and pestle
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