I wouldn't assume so but is there any issue with someone completing all 3 Options?
If rules ask for only 2 options, I see no point in doing all 3 unless you only want to help the community. But if that's the case, then there is no need to even mention that, just submit the two and do the third one in "secret".
Doing all three and posting links to all of them in the Trial topic is fishing for votes which is not allowed.
During phase 2 you all have a chance to explain why someone should vote for you, and on that topic you are allowed to post any links you want.
As a conclusion: Everyone posts only
two links in their Trial topic.