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, d, or e without using any other words.
Options:
a CNC(=O)Oc1cccc2c1OC(C)(C)C2=O
b CC(C)(O)CC(C)(O)c1ccc(Cl)cc1
c CCC(C)(C)c1ccc(O)c(C(C)(C)CC)c1
d COc1ccc(N)c(S(=O)(=O)O)c1
e CCNC(=O)C(C)OC(=O)Nc1ccccc1
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}