Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a) COP(C)(=S)Sc1ccccc1
b) CC(=O)CCc1ccc(OC(C)=O)cc1
c) CNC(=O)Oc1cccc2c(O)cccc12
d) CCN(CCO)c1cccc(C)c1
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}