Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a.) CN(C)C(=O)Nc1cccc(OC(F)(F)C(F)F)c1
b.) CNC(=O)Oc1ccc(NC(=O)OC)c(C(C)C)c1
c.) CCC(C)c1ccc(Cl)c(OC(=O)NC)c1
d.) Nc1ccc(S(=O)(=O)O)c2cccc(S(=O)(=O)O)c12
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}