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) O=C(CCNNC(=O)c1ccncc1)NCc1ccccc1
b) ClC1=C(Cl)C2(Cl)C3C4OC4C(Cl)C3C1(Cl)C2(Cl)Cl
c) CC(C)=CC1C(=O)OC(=O)C1(C=C(C)C)C=C(C)C
d) O=C1CN2CCOC2(c2ccccc2F)c2cc(Br)ccc2N1
e) c1ccc(N2CCNCC2)cc1
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}