[texhax] xcolor package puzzle

[Herbert Voss]

Am 09.10.2018 um 12:13 schrieb Schneider, Thomas (NIH/NCI) [E]:
> 
>> \PassOptionsToPackage{table}{xcolor}
>> \documentclass{pnas-new}
>>      
>> or simply
>>      
>> \documentclass[table]{pnas-new}

> How does the latter avoid being ambiguous as to which package it
> applies?  (I'll use the former.)

_all_ packages will see the optional arguments of \documentclass.

Herbert