Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a) O=C1CN2CCOC2(c2ccccc2Cl)c2cc(Cl)ccc2N1
b) CN(C)CCOCCOCCN(C)C
c) CCN(Cc1c(F)cccc1Cl)c1c([N+](=O)[O-])cc(C(F)(F)F)cc1[N+](=O)[O-]
d) CC(=O)CC(C)(C)N(C)N=O
e) CC=C1CC(C)C(C)(O)C(=O)OCC2CCN3CCC(OC1=O)C23
Answer: b
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}