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, or d without using any additional words.
Options:
a NS(=O)(=O)c1cc(Cl)c(Cl)c(S(N)(=O)=O)c1
b Cc1cccc([N+](=O)[O-])c1
c Cc1ccc(S(=O)(=O)O)c(N)c1
d Cc1cc(O)ccc1Cl
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}