Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a C=CC(=O)OCCOCCOCCOC(=O)C=C
b N#CN=c1ccccn1Cc1ccccc1Cl
c O=c1c(Cl)c(Cl)cnn1-c1ccccc1
d CC(C)Cn1nc(-c2ccccc2)c(-c2ccccc2)c1CC(=O)O
e CC(=O)NC(=O)C(Cl)(Cl)Cl
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}