Answer:
The written description of the complement of the given event is More than one of them test negative
Explanation:
The sentence states that seven people were tested and it also says that at least one tests positive, this means that the minimum number of positive results is one, which makes options A, B, and C incorrect in terms of probabilities and statistics, option A and C says that ALL of them are positive or negative respectively which can nos be supported by the expression "at least", then option B is a restatement of option A. Option D is the one that paraphrases the sentences correctly by saying that at least it was one even there could be more, but it does not assure that all.
