PT15.S3.Q18 - certain kinds of bacteria

babybennybabybenny Free Trial Member
edited December 2015 in Logical Reasoning 156 karma
I was down to A and C, and the answer is A, but I chose C.
I'm having a difficult time understanding why A is the answer and C is wrong.
I mean I thought both could be answers.

Can someone please explain me?
Thanks!
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