Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a CC1(C)Cc2cccc(OC(=O)NCSc3ccc(Br)cc3)c2O1
b CC1=COC(C)(C=O)CC1
c COc1ccc2c3c1OC1C(O)C=CC4C(C2)N(C)CCC341
d COc1ccc(-c2ccccc2)cc1CN1CCCC1
e CC1CN(CCCCCCCCNC(=O)Oc2ccc3c(c2)C2(C)CCN(C)C2N3C)CC(C)O1
Answer: e
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}