Marital Status confusion with Conjugal Sponsorship

I am applying to be sponsored by a Conjugal partner under the family class and I’m having some confusion with the Marital status. I know I am not in a common-law partnership or married, I also haven’t previously been married or in a common-law partner. This leaves me with the options of either single or unkown. The entire reason for the conjugal application is to be sponsored by a genuine partner who you’re unable to live with consecutively for a year and unable to currently marry so I find it weird to put single but am also very unsure about the unknown option as I can’t find detailed information about it. It’d be great to get some help. Thanks.

Hi

  1. You are neither married, nor in C/law relationship, so the answer would be single.
  2. You know that conjugal is one of the hardest categories to qualify in?