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 other words.
Options:
(a) CS(=O)(=O)Oc1ccc(Cl)cc1Cl
(b) CS(=O)(=O)c1ccc(Cl)cc1
(c) CCCCOC(=O)COc1ccc(Cl)cc1C
(d) CCOCN(C(=O)CCl)c1c(C)cccc1OC(C)C
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}