In a survey sponsored by the Lindt chocolate company, 1708 women were surveyed and 85% of them

Question:

In a survey sponsored by the Lindt chocolate company, 1708 women were surveyed and 85% of them said that chocolate made them happier.
a. Is there anything potentially wrong with this survey?
b. Of the 1708 women surveyed, what is the number of them who said that chocolate made them happier?