Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) CC(COc1ccc(C(C)(C)C)cc1)OS(=O)OCCCl
b) Oc1c(Cl)cc(Cl)c(Cl)c1Cl
c) O=Cc1cc([N+](=O)[O-])ccc1O
d) CNCCC(Oc1ccc(C(F)(F)F)cc1)c1ccccc1
e) CCOP(=S)(OCC)Oc1cc(C)nc2ccccc12
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}