Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
(a) CCOC(=O)C1CC2CCC1C2
(b) CN(C)C(=O)Nc1ccc(-n2nc(C(C)(C)C)oc2=O)c(Cl)c1
(c) O=C(O)C(F)(F)C(F)(F)C(F)(F)C(F)F
(d) C=CC(=O)OC1CC2CCC1C2
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}