(A) Unless the articles, the regulations adopted by the shareholders, or the regulations adopted by the directors pursuant to division (A)(1) of section 1701.10 of the Revised Code otherwise provide, the shareholders present in person, by proxy, or by the use of communications equipment at any meeting of shareholders shall constitute a quorum for such meeting, but no action required by law, the articles, or the regulations to be authorized or taken by the holders of a designated proportion of the shares of any particular class or of each class, may be authorized or taken by a lesser proportion.
(B) Unless the articles or the regulations otherwise provide, the holders of a majority of the voting shares represented at a meeting, whether or not a quorum is present, may adjourn such meeting from time to time.