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, or c without using any additional words.
Options:
a: CCOC(=O)N(c1cccc(C(=O)c2ccccc2)c1)S(=O)(=O)C(F)(F)F
b: Oc1cc(Cl)c(Cl)c(Cl)c1Cl
c: CCOP(=S)(CC)Oc1ccc(Cl)cc1
Answer: b
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}