Denver voters could get choice on pot use: Allow it in private clubs or regular businesses?

Denver elections officials are reviewing petitions for two potential local ballot measures that would allow the social use of marijuana — one in private clubs and the other in regular businesses, such as bars or cafes or even yoga studios, under certain conditions.

Backers of the competing initiatives each turned in thousands of petition signatures this week, the latest on Friday.

Whether to allow more prominent use of marijuana — and where — is shaping up as the biggest…