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 additional words.
Options:
a CCC1(C)C(=O)N(CC2CO2)C(=O)N1CC1CO1
b CC(=O)OC1CC2(O)C(CCC3(C)C(c4ccc(=O)oc4)CCC32O)C2(C)CCC(OC3OC(CO)C(O)C(O)C3O)C=C12
c O=c1n(CCCN2CCN(c3cccc(Cl)c3)CC2)nc2ccccn12
d Cc1cc(OC(=O)N(C)C)n(C(C)C)n1
e O=CC1=CCCCC1
Answer: c
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}