The following is an excerpt from a letter written by a World War I veteran in the mid 1920's. ...Well, we are finally getting what we richly deserve—the Adjusted Compensation Act is law. Even though Calvin Coolidge wouldn't put his John Hancock on the bill, Congress did right by us! Sometimes I think our illustrious President is just too wrapped up in the interests of business to pay much attention to the little guys. Remember how he wouldn't talk turkey with Gompers when the cops in Boston went out on strike. Course back then we thought he was just worried about public safety. I'm never too sure what to think of him — if he was willin' to jabber and jaw once in a while we might get more of an idea of just what he's all about!

Select the correct answer.
What is the allusion in this passage?

You may need to use a dictionary.

A.
Jabber and jaw
B.
Cops
C.
John Hancock
D.
Calvin Coolidge