Answer:
A) encouraged by credit guaranties to lend such funds
Step-by-step explanation:
In a situation like this, under the United States export financing options, (International Trade Administration) for firms who are into exportation of American products, Banks are highly encouraged by credit guarantees to lend funds for the interested firms. This process is also boosted through working capital guarantees from Ex-Im Bank or the U.S. Small Business Administration.
Hence, Charter and other U.S.banks are: "encouraged by credit guarantees to lend such funds."