All notices, consents , and other communications hereunder shall be in writing and shall be deemed to have been duly given either (A) upon delivery when delivered personally, (B) three (3) days after having been sent by certified mail return , receipt requested with postage prepaid, or (C) upon transmission by fax, e-mail, or similar electronic medium to the parties if successful delivery is confirmed (or at such other address for a party as shall be specified by like notice).