It's a because all of the other three is not related to penicillin in particular.
The statement given here is an example of : Paradox.
Explanation:
Paradox is when seemingly incomprehensible and diametrically opposite things are said together in tandem in a sentence to draw out a conflicting meaning out of it.
This is a clear example of paradox as in the given sentence we can see that there are two conflicts that are irreconcilable in any way.
The person who loses his life cannot find it because finding and losing one's life seems diametrically opposite yet the sentence does make sense in the sense of the rhetoric.
A slimy, very weak and non-committal handshake
I guess for an example you could use dieting or working out.
Answer:
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