The answer is <span>making a campaign donation to a candidate
A political participation is considered as conventional if it's conducted in the manner that considered as 'acceptable' by most people in society. (such as voting and making donation)
A political participation could be considered as Unconventional if it's considered Hostile and inappropriate even though it's still considered as legal.
(such as demonstration or creating a hit piece article on other candidates)
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I think it's a complicated proposition, usually people with psychic problems are often not taken seriously, and seen as less deserving. I think maybe you should see a different uncle thanking them for thanking them, as it is also difficult for people who have been seriously injured. Perhaps a form of support and after the completion of treatment the medal.
The answer isn't false, in fact its true.
The answer is c.the french believe that supporting americans would bring them wealth.hope this helps.