Final answer:
Tissues donated from a single person can benefit multiple people depending on the type of tissue. The answer is A. 8.
Step-by-step explanation:
Tissues donated from a single person can benefit multiple people. The specific number of people who can benefit from the tissues depends on the type of tissue being donated. For example, a single person's organ can potentially save up to 8 lives through organ transplantation. Additionally, a single donation of corneas can restore sight to two people, while tissue donations such as bone, skin, and heart valves can benefit multiple individuals.
Therefore, the answer to the question is A. 8.