Which of the devices below is an input device? ?

Err I don't see an image or anything so I'm not sure what you're referring to, but examples of input devices would be a keyboard, mouse, (drawing/graphic) tablet - they are inputting data into the system

versus output devices such as the monitor which is displaying data

Inputs are things you have plugged in and makes operations non-visible to the eye. Output devices are things like the computer monitor which displays you the image data to your eyes.

Malware, not sure what else would fit that description.

Placeholders  are the containers in  layouts  that hold such content as  text  (including body  text, bulleted lists, and titles),  tables,  charts, smartart graphics, movies, sounds, pictures, and clip art.  slide layouts  also contain the theme (colors, fonts, effects, and the background) of a  slide.