Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any other words.
Options:
a: COP(=O)(NC(C)=O)SC
b: Nc1c(S(=O)(=O)O)cc(Nc2ccc(S(=O)(=O)O)c(Nc3nc(Cl)nc(Cl)n3)c2)c2c1C(=O)c1ccccc1C2=O
c: CCOC(=O)C(OP(OCC)OCC)C(C)=O
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}