Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a) O=[N+]([O-])c1ccc(Sc2ccc([N+](=O)[O-])cc2)cc1
b) CNC(=O)Oc1ccccc1C1CCCC1
c) Nc1nc2cc(F)ccc2o1
d) CCCCCCCCCCCCCN1CC(C)OC(C)C1
e) Nc1nc2cc(Cl)c(Br)cc2o1
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}