question:  What is a likely explanation for Orison seeing Benjamin Franklin images in the Microfabridae tank?
context: [Transcriber's Note: This etext was produced from Worlds of If Science Fiction, May 1961. Mr. Wanji returned to Orison her letters of reference. "One each, a Franklin and a Grant," he explained further. "That will be most satisfactory, Mr. Wanji," Orison said. Mr. Wanji grabbed Orison's right hand and shook it with athletic vigor. "You just now joined up with our herd. The uniformed operator nodded to Mr. Wanji, bowed slightly to Orison. Beside them was a double-decked "In" and "Out" basket. This laissez-faire policy of Taft Bank's might explain why she'd been selected from the Treasury Department's secretarial pool to apply for work here, she thought. An odd business for a Federal Mata Hari, Orison thought, reading a nonsense story into a microphone for an invisible audience. Orison switched off her microphone at noon, marked her place in the book and took the elevator down to the ground floor. As though they were members of a ballet-troupe, these gentlemen whipped off their hats with a single motion as Orison stepped aboard the elevator. Orison nodded bemused acknowledgment of their gesture, and got off in the lobby vowing never to put a penny into this curiousest of banks. By five, Orison had finished the book, reading rapidly and becoming despite herself engrossed in the saga of Bilbo Baggins, Hobbit. And what the William Howard Taft National Bank and Trust Company needs is a joint raid by forces of the U.S. Treasury Department and the American Psychiatric Association. "Of a sort," Monitor J-12 agreed. Orison briefed her pillow on the Earmuffs, on her task of reading to a microphone, and on the generally mimsy tone of the William Howard Taft National Bank and Trust Company. Orison flung the shoe and the pillow under her bed, and resolved to write Washington for permission to make her future reports by registered mail. At ten o'clock the next morning, reading page four of the current Wall Street Journal , Orison was interrupted by the click of a pair of leather heels.
output:  The Microfabridae are being used to process $100 bills for illegal purposes.
options:  The Microfabridae are killing people and the faces look like Benjamin franklin.  It was a play of the eyes.  The Microfabridae are being used to process $100 bills for illegal purposes.  Someone accidentally dropped $100 bills into the tanks.