Difference between OCR and MICR

Which of these is most responsible for differences between the twentieth century to the twenty-first century?

While inserting images, the picture command is usually used to insert photos from a digital camera, and the clip art command is usually used to a. edit the sizes and other characteristics of photos that have been inserted. b. take a screenshot of an image and copy it to the clipboard for pasting. c. search for drawings or other images from a library of prepared pictures. d. make illustrations using lines and shapes that are easy to manipulate.

Hazel has just finished adding pictures to her holiday newsletter. she decides to crop an image. what is cropping an image?