How about allowing the women to answer properly with "restée" ?

Question

"Restée" is the correct past participle for a female, right?
You could program to accept both male and female answers, perhaps.
Women and girls need to get in the habit of using the feminine.
Yeah, yeah, I know that genderless is coming down the pike, but for now it is incontrovesial that women use feminite forms in French.  How elegant it would be if I could write, "Je suis restée."

Answer

I realize that in this specific sentence, one has to match the "Je suis resté" of the first part of the sentence, but in general, I would I would like to see this work. I will see what happens with other sentences.  I have been doing Kwiziiq for a year now and I must admit, I never tried to answer in he feminine when it was unspecified.  so maybe I jumped the gun.  I would delete the above suggestion if I could.  Thanks for you patience.  I happen to love Kwiziq.  It has helped me tremendously.

Answer

Hi Mary Anne,
Just for kicks I tried the female form once in a while and it usually worked just as well. Whenever it didn't, I reported it and it got fixed promptly.
-- Chris.

Answer

Hi Mary Anne - as I think you've realised, we do accept correct inflected forms of either gender so long as the context allows them. If the hint or context specify or imply a particular gender then only the appropriate form is accepted but in general, both forms will be accepted. Similarly, we won't mark answers incorrect for things like capitalisation and punctuation, unless the question or context explicitly requires something specific and it forms part of the test. 
Glad you're enjoying Kwiziq!