Some of the earliest cameras used specially treated pieces of copper to record images. For ten years, the prominent type of treatment process was called a daguerreotype process. Camera exposure, or the amount of time the camera lens was open, was between three and fifteen minutes for this specific process. Nevertheless, daguerreotype became very popular, and portrait studios opened all over New York City. Being photographed was not easy because subjects had to sit perfectly still while the light-sensitive copper plate was exposed. If the subject moved at all while being photographed, the image would turn out blurry. One solution for photographers was to make portraits very casual and comfortable, rationalizing that a person could hold a comfortable position longer than an uncomfortable one.

Question

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It was a(n) _________ process.

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A painstaking
B extravagant
C compassionate
D controversial

Answer 1

The best choice to fill in the blank is A, "painstaking."

The daguerreotype process required a significant amount of time and precision, making it a meticulous and labor-intensive procedure.

So the complete sentence would read: "It was a(n) painstaking process."