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, d, or e without using any other words.
Options:
[a] CNC(=O)Oc1ccccc1CCCSC
[b] CCOc1ccccc1C(N)=O
[c] COP(=S)(NC(C)C)Oc1ccc(Cl)cc1Cl
[d] CCP(=S)(OCCCl)Oc1ccc(C#N)cc1
[e] COc1cc(O)c(C(=O)c2ccccc2)cc1S(=O)(=O)O
Answer: a
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}