Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) CN1C(C(=O)Nc2ccccn2)=C(OC(=O)C(C)(C)C)c2sc(Cl)cc2S1(=O)=O
(b) CNN=Nc1ccc(Br)cc1
(c) CCN(CC)CCOCc1cc(Br)cc(Br)c1OC
(d) Cc1ccccc1CN(C)N=O
(e) CCOP(=S)(OCC)SCc1nnc(OC)s1
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}