Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a) N#CN=C1SCCN1Cc1ccc(Cl)nc1
b) COc1cc(Cl)c(OC)cc1Cl
c) CNN=Nc1ccc(I)cc1
d) Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O
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}