Which of the Following Could Result in a Tetanus Infection

Which of the following could result in a tetanus infection?

A) The nurse accidently forgets to wipe your arm with an alcohol pad before giving you your flu shot.
B) You order a steak when out with friends for dinner, and although it wasn't completely cooked, you ate it anyways because you didn't want to make a scene or delay anyone else from eating.
C) A two- inch piece of wood causes a deep puncture in your arm when replacing a board on your deck.
D) A fingernail of a coworker accidently scratches you.
E) While squeezing through to get into your car, you get a surface abrasion from a rough and rusted panel on the car next to you.