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, or c without using any additional words.
Options:
(a) CC(CN1CCN(CCOCCO)CC1)CN1c2ccccc2Sc2ccccc21
(b) FC(F)(F)c1nc2c(Cl)c(Cl)ccc2[nH]1
(c) COc1cc(C2NC(=O)CCS2)cc(OC)c1OC
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}