pg 431 Q 7

Any fruit that is infected is also rotten. No fruit that was inspected is infected. Therefore, any fruit that was inspected is safe to eat.

SA

D - It is not safe to eat any fruit that is infected
E- It is safe to eat any fruit that is uninfected

I put D because i had

Inf-->R Which i didnt think ended up mattering at all
Insp--->~Inf

So
Insp-->S

So I figured i needed
~inf-->S

D looks like contrapositive to this.
~S-->Inf

What'd I do wrong?