Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a) CNC(=O)ON=C(SC)c1ccc(Cl)cc1
b) O=C(Cn1c(=O)sc2ccc(Cl)cc21)N1CCNCC1
c) C[N+]([O-])=NCOC1OC(CO)C(O)C(O)C1O
d) O=C(Cn1c(=O)sc2ccc(Cl)cc21)N1CCN(CCO)CC1
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}