Which of the following is a good tip for documentary photography?

shoot with your heart.
do whatever you must to get the image.
never worry about how people will feel about an image.
avoid using black and white photos for documentary images.

I am pretty sure that the following which is a good tip for documentary photography is the second option : Avoid using black and white photos for documentary images. I think it's right because when you capture moments for such kind of photography you have to convey what is happening around you as accurately as possible.

The term collage was coined by both  georges braque  and  pablo picasso  in the beginning of the 20th century when collage became a distinctive part of modern art.hope this sorry if there wasn't more of an explanation!