Word: How to convert images to black and white?

Question

Microsoft Office

It was required that not color images be printed, but black and white.
So far, the ideal option would be if the document had color illustrations, and they were printed as black and white.
Another option is to change the color of images directly in the document. Can this be done?
As the last option, how to convert all images to black and white without the help of an external editor?

Answer 1

Option 2:
1. Export to pdf and print on B&W printer/B&W mode.
2. Online image editing, third-party photo processing programs.
In the word itself, it is hardly possible to do it, I saw direct color correction only in apple Pages