Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) Cc1c(N)cccc1Cl
b) CCOc1ccc(C(CN(C)C)C(C)CC)cc1Cl
c) Nc1cc(Cl)c(N)cc1Cl
d) Cc1ccc2ncccc2c1
e) COP(=O)(OC)Oc1ccc([N+](=O)[O-])c(Cl)c1
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}