In the earliest stages of photography, after the camera obscura, developments in which of these made photography more possible?

A.
the kind of lens used on the camera

B.
chemical treatments for developing

C.
the increase in exposure time required

D.
the limitations on certain kinds of images

B. chemical treatments for developing

The correct answer is B. Chemical treatments for developing.

In the earliest stages of photography, chemical treatments for developing played a crucial role in making photography possible. After capturing an image using a camera obscura, photographers needed a way to "develop" the image by treating the exposed film or plate with chemicals. This process allowed the latent image to become visible and permanent.