Which of the following is a challenge when taking a self-portrait?

You can't see the photograph before you take it.
Not having anyone else around
Deciding on the subject of the photograph
All of the above

A, you cant see the photograph before taking it

Explanation:

The answer is quite clear but when shooting a subject that is not you you can make or tell smeone to adjust something and you know how the shot will turn out for the most part. With a self portrait you can see where you will be but geting there and in position is a challange.

hi     (had to add 20 words)                                                                  

photography had emerged as an elite art pursued by a few creative individuals for a few wealthy patrons. but now, said bauldelaire, it was succumbing to "the great industrial madness of our times." it was becoming a mass production industry that catered to middle-class tastes, including a taste for gadgetry. the stereoscope, the first 3d imaging system, had turned looking at photographs into parlor entertainment. a "thousand hungry eyes were bending over the peepholes of the stereoscope as though they were the attic-windows of the infinite.