Macedon wrote:

Which number in set P has a value greater than that of every other member of all set P, if all the members of set P are negative integers?

1 Each member of set P is the product of -1 and a prime number

2At least one member of P is even

This question isn't very clear. If it is asking what is the maximum value in P then 1 and 2 together would be sufficient to determine that -2 is in P. Since -2 is greater than all the other products of -1 and prime numbers, then we can say the answer is C.

However if it is asking which element has the greatest value, then the answer would be E, since there could be more than one element that has the value of -2.

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