The theory is most likely A) Valid. If a group of authorized scientists agreed on the theory, it would be valid. It would most likely be unreliable if it was only one scientist working alone and biased. If you don't have a group of scientists, the theory most likely won't be true because it hasn't been tested many times.
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Caused by sexual contact are more difficult to treat..
YES YES YES YES YES YES YES YES I don’t get what u are saying but points for me!