Final answer:
Without additional context or the total number of people involved, it is impossible to determine the probability that 35 people knew the murderer; hence, the answer is D) The probability depends on the total number of people involved.
Step-by-step explanation:
The probability that 35 people knew the murderer cannot be determined from the given information. We would need to know the total number of people who could possibly know the murderer before we could calculate the probability. Additionally, the probability would depend on whether we are considering this in a real-world context or within a hypothetical or fictional scenario where determinations of what is possible may differ.
For example, in the context of the question, if we were considering a group of 100 people, where each person has an equal chance of knowing the murderer, then the probability could be considered. In such a case, it would involve combinatorial probability calculations, taking into account the number of ways 35 people could be chosen from the larger group.
However, as the question stands, without additional context or data, the correct answer would be D) The probability depends on the total number of people involved.