Option C is the correct answer.

In this phrasing, "their Face Wash" correctly compares sales without unnecessary repetition of "did" or "sold."

Additionally, since the statement uses "more" in the former part of the sentence, the latter part should also use "more" to maintain parallelism. The use of "as much as" is incorrect. 

Option A is redundant and awkward.
Option B has incorrect parallelism. 
Option D has awkward phrasing.