Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. CC1=CCC(O)(C(C)C)CC1
b. c1cc[n+]2c(c1)-c1cccc[n+]1CC2
c. O=C1CCc2cc(C(=O)CCN3CCN(c4ccccc4)CC3)ccc2N1
d. COc1cc2c(c3oc(=O)c4c(c13)CCC4=O)C1C=COC1O2
e. CCN(CCOC(C)=O)C(C)=O
Answer: a
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}