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) COc1ccc(SP(=S)(CCl)OC(C)C)cc1
(b) O=C(c1ccccc1)c1cccc(NS(=O)(=O)C(F)F)c1
(c) CCCCCCCCCCCCc1ccc(S(=O)(=O)O)cc1
(d) Clc1ccc(C(Cl)(Cl)Cl)c(Cl)c1
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}