Photo Manipulation and Ethics

A) I've learned that when you manipulate photos there is a fine line between ethical and nonethical photos. Photoshop is very controversial and can cause many people to be upset about edited photos. Many major publishing companies do not tolerate doctored images at all, and can cause people to lose their jobs.
B) The philosophy of photo manipulation for newspaper companies like the Washington Post and New York Times is to provide very strict guidelines for any sort of photoshop.
C) I think that it is acceptable to altar an image as long as it does not affect the meaning of an image. I do not think it is ethical to crop somebody's face onto someone else's body because it is hinting that that is their body. I do, however, think that adjusting colors or lighting is acceptable.
D)

I think that this image is the most unethical because it shows Oprah's head on somebody else's body while stating that it is Oprah. Also, this was published without the consent of either women involved.

E)

I think that this photo was the least unethical because the photographer simply enhanced the colors of the photo. The enhanced color did not change the subject of the photo, or the overall meaning.