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) COP(=O)(OC)OC(=C(Br)Br)c1ccc(Cl)cc1Cl
b) Cc1ccc(N)cc1C
c) N#CN=C1SCCN1Cc1ccc(Cl)nc1
d) O=S(=O)(Cl)c1ccc(Cl)cc1
e) O=[N+]([O-])c1ccc(Oc2c(F)cc(Cl)cc2Cl)cc1
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}