19 Of course this query could have no reference to my situation. Yet, unreasonable as it may appear, I confess that my feelings were not altogether so ecstatic as when I first called Mrs. Bullfrog mine. True, she was a sweet woman and an angel of a wife; but what if a Gorgon should return, amid the transports of our connubial bliss, and take the angel's place. I recollected the tale of a fairy, who half the time was a beautiful woman and half the time a hideous monster. Had I taken that very fairy to be the wife of my bosom? While such whims and chimeras were flitting across my fancy I began to look askance at Mrs. Bullfrog, almost expecting that the transformation would be wrought before my eyes.
To what mythological creatures is Mrs. Bullfrog compared in the final paragraph?

A) an angel and a fairy
B) a fairy and a chimera
C) an angel and a gorgon
D) a gorgon and a chimera