Two people are having a discussion. what should they do to ensure that the discussion is positive and rewarding? they should withhold their views to avoid being judged. they should speak openly with few inhibitions. they should steer the conversation in their favor. they should speak more than they listen.

The answer is straightforward: "They should speak openly with few inhibitions."
They should both share their honest opinion(s) minding common decency.

I’m going to guess these are the choices: a) recreational skiing developed in the mid-19th century b) it was originally invented as a way of getting from place to place in snowy regions c) downhill skiing is currently the only common form of the sport d) it mostly evolved from snowshoeing- if that’s the cases then the answer would be c) downhill skiing is currently the only common form of the sport