1. Shallow depth of field means that what part of the photo will be in focus?

a. Only a small portion that you choose
b. Only items in the foreground *****
c. Most of the image will, a few parts not in focus
d. All of the image will be in focus

I agree.

https://digital-photography-school.com/17-beautiful-images-with-shallow-depth-of-field/

To determine the answer to this question, we need to understand what shallow depth of field means in photography. Depth of field refers to the range of the photo that appears sharp and in focus.

In the case of shallow depth of field, the answer is a. Only a small portion that you choose. When you use a shallow depth of field, you are intentionally selecting a narrow range of the photo to be in focus, while the rest appears blurred. This technique is often used to isolate a subject from its background or create a sense of depth and separation between foreground and background elements.

To achieve a shallow depth of field, you can use a wide aperture (small f-number), a longer focal length lens, and position your subject relatively close to the camera while keeping the background elements further away. These factors combined allow you to control which part of the photo will be in focus while intentionally blurring the other areas.