1.  facsimile

A. picture
B. image
C. mimeograph
D. copier

Answer: Option B

Explanation:

A facsimile must involve an image of some sort. The image or facsimile need not, however, be a picture (choice a). A mimeograph and a copier machine (choices c and d) are just a two of the ways that images may be produced, so they do not qualify as the essential element for this item.