The conditional is, If the pizza has T, then it cannot have either P or O.
I wrote as T--> -P AND -O.
Split apart:
T--> -P (therefore, P --> -T)
T--> -O (therefore, O--> -T)
I chose the second answer on the right, which was If O, then not T. Apparently, this is the wrong answer.
What am I doing wrong?