Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
(a) CC(=O)C(Cl)C(=O)OC(C)c1ccccc1
(b) COP(=O)(OC)OC(=C(Cl)Cl)c1ccc(Cl)cc1Cl
(c) CCSC(=O)COc1ccc(Cl)cc1C
(d) CN(C)c1ccc(SC#N)cc1
Answer: c
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}