English comp 2 vs Worplace Writing 2

[NewbieLearner]

Hi all. just a quick question here.  
looking at the spreadsheet here https://docs.google.com/spreadsheets/d/1...=524351696

it shows that Sophia Eng Comp2 and Worplace Writing 2 BOTH cover the requirements for 1B 2C and 4B 

is this correct that they are interchangeable?   Does anyone have a suggestion as to which is quicker / easier?

from the number of challenges and the 1 less touchstone it looks like Workplace 2 would be the better choice

thanks!