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 other words.
Options:
(a) CCC=CCCOC(=O)c1ccccc1O
(b) CC1COn2c1nc1ccccc1c2=O
(c) CCCCCCCCCCOc1c(OC)cc(C(N)=O)cc1OC
(d) CC(C)(O)C(C)(O)c1ccc(Cl)cc1
(e) CN(C)CCCN1c2ccccc2Sc2ccc(Cl)cc21
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}