Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a: CCC(C)NCC(O)c1ccc(N)cc1
b: O=c1[nH]c(=O)n(C2CC(O)C(CO)O2)cc1F
c: O=c1[nH]c(=O)n(C2CC(O)C(CO)O2)cc1Br
d: CC(=O)OCCOc1ccccc1
e: COc1ccc(CCNCC(O)c2ccc(O)cc2)cc1OC
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}