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 CCOCCOc1ccc(Cl)cc1Cl
b Cc1ccc(O)cc1C
c CCCCCCCCCCCCCCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
d CCOc1c(OP(=S)(OCC)OC(C)C)cnn(C)c1=O
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}