Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
[a] C=C(OP(=O)(OCC)OCC)c1ccc(Cl)cc1Cl
[b] C=CC(C)(CCC=C(C)C)OC(=O)c1ccccc1N
[c] CCOC(C1=NCC(O)CN1)c1ccccc1
[d] Cc1ccc(N)c(S(=O)(=O)O)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}