Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a: COC1(C)CC(c2ccccc2)c2c(c3ccccc3oc2=O)O1
b: COc1ccccc1S
c: CC(=O)N(C)C(=O)Oc1cc(C)c(C)cc1Cl
d: CC(C)=NNC(=O)CSc1cc(Oc2ccccc2)ncn1
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}