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, d, or e without using any additional words.
Options:
[a] CCCCCCCCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
[b] Oc1c(Cl)cc(Cl)cc1Cl
[c] CCC(C)N(C(=O)SCc1ccccc1)C(C)CC
[d] CCCOc1cc(C=CC(=S)OCC)ccc1OC
[e] CCOC(=O)CCN(Cc1ccccc1)SN(C)C(=O)ON=C(C)SC
Answer: b
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}