Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a.) NC(=S)Cc1cccc2ccccc12
b.) CCN(CC)CCCNC(=O)C(C)(C)Oc1ccc(Cl)cc1
c.) COP(=S)(OC)SCSc1ccccc1Cl
d.) COc1ccc(NC(=O)N(C)C)cc1Cl
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}