Final answer:
In forensic investigations, the number of pictures taken of each piece of evidence depends on various factors, and the answer is 'it depends.'
Step-by-step explanation:
In forensic investigations, the number of pictures that need to be taken of each piece of evidence depends on various factors. The correct answer is d. it depends. The number of pictures taken may vary depending on the nature of the evidence, its condition, the type of investigation, and the purpose of the photographs. For example, if the evidence is a complex item with multiple angles or features, more pictures may be needed to capture all relevant details.