Doyle gives a check to eMarket Finance to buy 100 shares of stock in FabNu Corporation for Doyle. The price of the shares is constantly fluctuating. eMarket asks Doyle to leave the amount of the check blank and allow it to fill in the price when making the purchase. Doyle agrees. eMarket buys the stock when the price is $4,000but fills in the check for $5,000. The check is negotiated as payment for a $5,000 debt to Guido & Hollis Accountants (G&H), which takes the check in good faith and without notice of eMarkets act. G&H later learns that eMarket was not authorized to fill in the check for $1,000 over the price. Is G&H an HDC? If so, for how much?