Events which transpired between GHI office supply and RST a commercial business user of paper supplies:

June 2 - RST sends a fax to GHI offering to buy 500 reams of paper at $2.00 per ream..

June 3 - GHI sends a fax back to RST stating "Price acceptable. Payment necessary before delivery is made."

GHI and RST:

on June 3 have a contract, but without the payment terms

on June 3 have a contract, but with the payment terms

have no contract

have a contract at the option of RST, because of the changed terms in the purported acceptance

none of the above