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 additional words.
Options:
a) CCOCN(C(=O)CCl)c1c(C)cccc1CC
b) CN(C)C(=O)Nc1ccc(SC(F)(F)Cl)c(Cl)c1
c) CCN(C)CCC(CC=C(C)C)(C(N)=O)c1cccc2ccccc12
d) O=C(O)c1cc(Oc2ccc(C(F)(F)F)cc2Cl)ccc1[N+](=O)[O-]
e) CC(C)CCCCCOC(=O)c1ccccc1C(=O)OCCCCCC(C)C
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}