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) CCOP(=O)(OP(=O)(OCC)N(C)C)N(C)C
(b) COP(=O)(N=C1SCCN1C)SC
(c) Cc1cc(C)c(C2=C(OC(=O)OC(C)C)c3ccccc3C2=O)c(C)c1
(d) CN(C)C(=S)SCN1CCOCC1
(e) FC(F)(F)c1nc2c(Br)c(Br)c(Cl)c(Br)c2[nH]1
Answer: d
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}